All Results|Race Analytics|Course|Contact
BOSTON MARATHON 2026

Jason Sluzewicz

Bib: 33578•M

IL

Boston Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M40-44)
#0 / 2198
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
32:44
3.11 mi
Rank: #27242
Start → 5K
32:44 | 10:33/mi
10K
1:08:11
6.21 mi
Rank: #27849 (-607)
5K → 10K
35:27 | 11:25/mi
15K
1:42:47
9.32 mi
Rank: #27764 (+85)
10K → 15K
34:36 | 11:09/mi
20K
2:19:13
12.43 mi
Rank: #27781 (-17)
15K → 20K
36:26 | 11:44/mi
HALF
2:27:05
13.11 mi
Rank: #27784 (-3)
20K → HALF
7:52 | 11:33/mi
25K
2:57:11
15.53 mi
Rank: #27816 (-32)
HALF → 25K
30:06 | 12:25/mi
30K
3:37:19
18.64 mi
Rank: #27812 (+4)
25K → 30K
40:08 | 12:56/mi
20M
3:54:48
20.00 mi
Rank: #27792 (+20)
30K → 20M
17:29 | 12:53/mi
21M
4:09:55
21.00 mi
Rank: #27825 (-33)
20M → 21M
15:07 | 15:07/mi
35K
4:19:31
21.75 mi
Rank: #27825
21M → 35K
9:36 | 12:50/mi
23M
4:35:35
23.00 mi
Rank: #27810 (+15)
35K → 23M
16:04 | 12:51/mi
24M
4:48:07
24.00 mi
Rank: #27797 (+13)
23M → 24M
12:32 | 12:32/mi
40K
4:59:17
24.85 mi
Rank: #27787 (+10)
24M → 40K
11:10 | 13:04/mi
25.2M
5:04:07
25.20 mi
Rank: #27774 (+13)
40K → 25.2M
4:50 | 14:01/mi
FINISH
5:15:49
26.22 mi
Rank: #27744 (+30)
25.2M → FINISH
11:42 | 11:29/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:27:05
Pace11:14 /mi
2nd Half
Distance13.11 mi
Time2:48:44
Pace12:53 /mi
📊Positive Split: 14.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:04:4132:4410:3332:44
10:33
-
10K
6.21 mi12:40:081:08:1110:5935:27
11:25
+0:52
15K
9.32 mi13:14:441:42:4711:0234:36
11:09
-0:16
20K
12.43 mi13:51:102:19:1311:1336:26
11:44
+0:35
HALF
13.11 mi13:59:022:27:0511:147:52
11:33
-0:11
25K
15.53 mi14:29:082:57:1111:2530:06
12:25
+0:52
30K
18.64 mi15:09:163:37:1911:4040:08
12:56
+0:31
20M
20.00 mi15:26:453:54:4811:4517:29
12:53
-0:03
21M
21.00 mi15:41:524:09:5511:5515:07
15:07
+2:14
35K
21.75 mi15:51:284:19:3111:569:36
12:50
-2:17
23M
23.00 mi16:07:324:35:3511:5916:04
12:51
+0:01
24M
24.00 mi16:20:044:48:0712:0112:32
12:32
-0:19
40K
24.85 mi16:31:144:59:1712:0311:10
13:04
+0:32
25.2M
25.20 mi16:36:045:04:0712:054:50
14:01
+0:57
FINISH
26.22 mi16:47:465:15:4912:0411:42
11:29
-2:32

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

10:33 /mi

Average Pace

12:03 /mi

Slowest Pace

15:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:38:47

50% of race

Time at Steady Pace

2:17:05

43% of race

Time at Slower Pace

19:57

6% of race

Average Pace: 12:03 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi12:04:4132:4410:3332:44
10:33
#27242
10K
6.21 mi12:40:081:08:1110:5935:27
11:25
#27849
15K
9.32 mi13:14:441:42:4711:0234:36
11:09
#27764
20K
12.43 mi13:51:102:19:1311:1336:26
11:44
#27781
HALF
13.11 mi13:59:022:27:0511:147:52
11:33
#27784
25K
15.53 mi14:29:082:57:1111:2530:06
12:25
#27816
30K
18.64 mi15:09:163:37:1911:4040:08
12:56
#27812
20M
20.00 mi15:26:453:54:4811:4517:29
12:53
#27792
21M
21.00 mi15:41:524:09:5511:5515:07
15:07
#27825
35K
21.75 mi15:51:284:19:3111:569:36
12:50
#27825
23M
23.00 mi16:07:324:35:3511:5916:04
12:51
#27810
24M
24.00 mi16:20:044:48:0712:0112:32
12:32
#27797
40K
24.85 mi16:31:144:59:1712:0311:10
13:04
#27787
25.2M
25.20 mi16:36:045:04:0712:054:50
14:01
#27774
FINISH
26.22 mi16:47:465:15:4912:0411:42
11:29
#27744
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi27242157281572827598(Top 95%)15838(Top 97%)15838(Top 721%)
10K6.21 mi3.10 mi27849-60715956-22815956-22828154(Top 97%)16054(Top 98%)16054(Top 730%)
15K9.32 mi3.11 mi27764+8515913+4315913+4327598(Top 95%)15838(Top 97%)15838(Top 721%)
20K12.43 mi3.11 mi27781-17159131591327758(Top 96%)15888(Top 97%)15888(Top 723%)
HALF13.11 mi0.68 mi27784-315910+315910+327905(Top 96%)15901(Top 97%)15901(Top 723%)
25K15.53 mi2.42 mi27816-3215921-1115921-1127845(Top 96%)15890(Top 97%)15890(Top 723%)
30K18.64 mi3.11 mi27812+415896+2515896+2527652(Top 95%)15748(Top 96%)15748(Top 716%)
20M20.00 mi1.36 mi27792+2015885+1115885+1127306(Top 94%)15558(Top 95%)15558(Top 708%)
21M21.00 mi1.00 mi27825-3315892-715892-728136(Top 97%)15907(Top 97%)15907(Top 724%)
35K21.75 mi0.75 mi2782515891+115891+127563(Top 95%)15620(Top 96%)15620(Top 711%)
23M23.00 mi1.25 mi27810+1515876+1515876+1527150(Top 94%)15396(Top 94%)15396(Top 700%)
24M24.00 mi1.00 mi27797+1315861+1515861+1527214(Top 94%)15394(Top 94%)15394(Top 700%)
40K24.85 mi0.85 mi27787+1015851+1015851+1027113(Top 93%)15330(Top 94%)15330(Top 697%)
25.2M25.20 mi0.35 mi27774+1315841+1015841+1027227(Top 94%)15383(Top 94%)15383(Top 700%)
FINISH26.22 mi1.02 mi27744+3015821+2015821+2026863(Top 93%)15196(Top 93%)15196(Top 691%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21
+97ft-345ft

Overall

27598

Males

15838

M40-44

15838

5K→10K

3.1 - 6.2 mi

Top 97%
×5
+79ft-138ft

Overall

28154

Males

16054

M40-44

16054

10K→15K

6.2 - 9.3 mi

Top 95%
×3
+67ft-78ft

Overall

27598

Males

15838

M40-44

15838

15K→20K

9.3 - 12.4 mi

Top 96%
×5
+106ft-86ft

Overall

27758

Males

15888

M40-44

15888

20K→HALF

12.4 - 13.1 mi

Top 96%
×2
+19ft-37ft

Overall

27905

Males

15901

M40-44

15901

HALF→25K

13.1 - 15.5 mi

Top 96%
×4
+66ft-88ft

Overall

27845

Males

15890

M40-44

15890

25K→30K

15.5 - 18.6 mi

Top 95%
×9
+181ft-148ft

Overall

27652

Males

15748

M40-44

15748

30K→20M

18.6 - 20.0 mi

Top 94%
×5
+64ft-50ft

Overall

27306

Males

15558

M40-44

15558

20M→21M

20.0 - 21.0 mi

Top 97%
×8
+106ft-24ft

Overall

28136

Males

15907

M40-44

15907

21M→35K

21.0 - 21.8 mi

Top 95%
×7
+17ft-86ft

Overall

27563

Males

15620

M40-44

15620

35K→23M

21.8 - 23.0 mi

Top 94%
×5
+23ft-63ft

Overall

27150

Males

15396

M40-44

15396

23M→24M

23.0 - 24.0 mi

Top 94%
×6
+12ft-82ft

Overall

27214

Males

15394

M40-44

15394

24M→40K

24.0 - 24.9 mi

Top 93%
×1
+6ft-20ft

Overall

27113

Males

15330

M40-44

15330

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1
+13ft-16ft

Overall

27227

Males

15383

M40-44

15383

25.2M→FINISH

25.2 - 26.2 mi

Top 93%
×2
+22ft-21ft

Overall

26863

Males

15196

M40-44

15196

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
590
Passed By
1092
Net Change
-502
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27242
5K → 10K18625-607#27242#27849
10K → 15K15065+85#27849#27764
15K → 20K83100-17#27764#27781
20K → HALF1720-3#27781#27784
HALF → 25K5688-32#27784#27816
25K → 30K7066+4#27816#27812
30K → 20M3818+20#27812#27792
20M → 21M1750-33#27792#27825
21M → 35K19190#27825#27825
35K → 23M2611+15#27825#27810
23M → 24M2411+13#27810#27797
24M → 40K199+10#27797#27787
40K → 25.2M152+13#27787#27774
25.2M → FINISH388+30#27774#27744
TOTALS5901092-502
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing