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

Charles Kaminski

Bib: 11843•M

CA

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 (M70-74)
#0 / 281
Top 5%
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
24:17
3.11 mi
Rank: #15544
Start → 5K
24:17 | 7:49/mi
10K
48:26
6.21 mi
Rank: #15433 (+111)
5K → 10K
24:09 | 7:47/mi
15K
1:12:48
9.32 mi
Rank: #15506 (-73)
10K → 15K
24:22 | 7:51/mi
20K
1:37:41
12.43 mi
Rank: #15644 (-138)
15K → 20K
24:53 | 8:01/mi
HALF
1:43:04
13.11 mi
Rank: #15677 (-33)
20K → HALF
5:23 | 7:54/mi
25K
2:02:34
15.53 mi
Rank: #15685 (-8)
HALF → 25K
19:30 | 8:03/mi
30K
2:28:57
18.64 mi
Rank: #15913 (-228)
25K → 30K
26:23 | 8:30/mi
20M
2:40:18
20.00 mi
Rank: #15861 (+52)
30K → 20M
11:21 | 8:22/mi
21M
2:49:21
21.00 mi
Rank: #15860 (+1)
20M → 21M
9:03 | 9:03/mi
35K
2:55:20
21.75 mi
Rank: #15785 (+75)
21M → 35K
5:59 | 8:00/mi
23M
3:06:10
23.00 mi
Rank: #15817 (-32)
35K → 23M
10:50 | 8:40/mi
24M
3:14:20
24.00 mi
Rank: #15756 (+61)
23M → 24M
8:10 | 8:10/mi
40K
3:21:41
24.85 mi
Rank: #15766 (-10)
24M → 40K
7:21 | 8:36/mi
25.2M
3:25:01
25.20 mi
Rank: #15807 (-41)
40K → 25.2M
3:20 | 9:40/mi
FINISH
3:33:31
26.22 mi
Rank: #15854 (-47)
25.2M → FINISH
8:30 | 8:21/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:43:04
Pace7:52 /mi
2nd Half
Distance13.11 mi
Time1:50:27
Pace8:26 /mi
📊Positive Split: 7.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:44:1024:177:4924:17
7:49
-
10K
6.21 mi11:08:1948:267:4824:09
7:47
-0:02
15K
9.32 mi11:32:411:12:487:4924:22
7:51
+0:04
20K
12.43 mi11:57:341:37:417:5224:53
8:01
+0:10
HALF
13.11 mi12:02:571:43:047:525:23
7:54
-0:07
25K
15.53 mi12:22:272:02:347:5419:30
8:03
+0:09
30K
18.64 mi12:48:502:28:578:0026:23
8:30
+0:27
20M
20.00 mi13:00:112:40:188:0111:21
8:22
-0:08
21M
21.00 mi13:09:142:49:218:049:03
9:03
+0:41
35K
21.75 mi13:15:132:55:208:045:59
8:00
-1:03
23M
23.00 mi13:26:033:06:108:0610:50
8:40
+0:40
24M
24.00 mi13:34:133:14:208:068:10
8:10
-0:30
40K
24.85 mi13:41:343:21:418:077:21
8:36
+0:26
25.2M
25.20 mi13:44:543:25:018:093:20
9:40
+1:04
FINISH
26.22 mi13:53:243:33:318:098:30
8:21
-1:19

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

7:47 /mi

Average Pace

8:09 /mi

Slowest Pace

9:40 /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

1:18:11

37% of race

Time at Steady Pace

1:18:23

37% of race

Time at Slower Pace

56:57

27% of race

Average Pace: 8:09 /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 mi10:44:1024:177:4924:17
7:49
#15544
10K
6.21 mi11:08:1948:267:4824:09
7:47
#15433
15K
9.32 mi11:32:411:12:487:4924:22
7:51
#15506
20K
12.43 mi11:57:341:37:417:5224:53
8:01
#15644
HALF
13.11 mi12:02:571:43:047:525:23
7:54
#15677
25K
15.53 mi12:22:272:02:347:5419:30
8:03
#15685
30K
18.64 mi12:48:502:28:578:0026:23
8:30
#15913
20M
20.00 mi13:00:112:40:188:0111:21
8:22
#15861
21M
21.00 mi13:09:142:49:218:049:03
9:03
#15860
35K
21.75 mi13:15:132:55:208:045:59
8:00
#15785
23M
23.00 mi13:26:033:06:108:0610:50
8:40
#15817
24M
24.00 mi13:34:133:14:208:068:10
8:10
#15756
40K
24.85 mi13:41:343:21:418:077:21
8:36
#15766
25.2M
25.20 mi13:44:543:25:018:093:20
9:40
#15807
FINISH
26.22 mi13:53:243:33:318:098:30
8:21
#15854
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi15544104561045615692(Top 54%)10464(Top 64%)10464(Top 3724%)
10K6.21 mi3.10 mi15433+11110390+6610390+6615374(Top 53%)10378(Top 64%)10378(Top 3693%)
15K9.32 mi3.11 mi15506-73103901039015692(Top 54%)10464(Top 64%)10464(Top 3724%)
20K12.43 mi3.11 mi15644-13810429-3910429-3916180(Top 56%)10628(Top 65%)10628(Top 3782%)
HALF13.11 mi0.68 mi15677-3310444-1510444-1516270(Top 56%)10704(Top 66%)10704(Top 3809%)
25K15.53 mi2.42 mi15685-810436+810436+815697(Top 54%)10386(Top 64%)10386(Top 3696%)
30K18.64 mi3.11 mi15913-22810493-5710493-5716867(Top 58%)10769(Top 66%)10769(Top 3832%)
20M20.00 mi1.36 mi15861+5210458+3510458+3515250(Top 53%)9984(Top 61%)9984(Top 3553%)
21M21.00 mi1.00 mi15860+110440+1810440+1816354(Top 56%)10403(Top 64%)10403(Top 3702%)
35K21.75 mi0.75 mi15785+7510397+4310397+4314461(Top 50%)9530(Top 58%)9530(Top 3391%)
23M23.00 mi1.25 mi15817-3210378+1910378+1916628(Top 57%)10352(Top 63%)10352(Top 3684%)
24M24.00 mi1.00 mi15756+6110341+3710341+3714832(Top 51%)9540(Top 58%)9540(Top 3395%)
40K24.85 mi0.85 mi15766-1010328+1310328+1316247(Top 56%)10070(Top 62%)10070(Top 3584%)
25.2M25.20 mi0.35 mi15807-4110334-610334-618028(Top 62%)10899(Top 67%)10899(Top 3879%)
FINISH26.22 mi1.02 mi15854-4710332+210332+217256(Top 59%)10544(Top 65%)10544(Top 3752%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21
+97ft-345ft

Overall

15692

Males

10464

M70-74

10464

5K→10K

3.1 - 6.2 mi

Top 53%
×5
+79ft-138ft

Overall

15374

Males

10378

M70-74

10378

10K→15K

6.2 - 9.3 mi

Top 54%
×3
+67ft-78ft

Overall

15692

Males

10464

M70-74

10464

15K→20K

9.3 - 12.4 mi

Top 56%
×5
+106ft-86ft

Overall

16180

Males

10628

M70-74

10628

20K→HALF

12.4 - 13.1 mi

Top 56%
×2
+19ft-37ft

Overall

16270

Males

10704

M70-74

10704

HALF→25K

13.1 - 15.5 mi

Top 54%
×4
+66ft-88ft

Overall

15697

Males

10386

M70-74

10386

25K→30K

15.5 - 18.6 mi

Top 58%
×9
+181ft-148ft

Overall

16867

Males

10769

M70-74

10769

30K→20M

18.6 - 20.0 mi

Top 53%
×5
+64ft-50ft

Overall

15250

Males

9984

M70-74

9984

20M→21M

20.0 - 21.0 mi

Top 56%
×8
+106ft-24ft

Overall

16354

Males

10403

M70-74

10403

21M→35K

21.0 - 21.8 mi

Top 50%
×7
+17ft-86ft

Overall

14461

Males

9530

M70-74

9530

35K→23M

21.8 - 23.0 mi

Top 57%
×5
+23ft-63ft

Overall

16628

Males

10352

M70-74

10352

23M→24M

23.0 - 24.0 mi

Top 51%
×6
+12ft-82ft

Overall

14832

Males

9540

M70-74

9540

24M→40K

24.0 - 24.9 mi

Top 56%
×1
+6ft-20ft

Overall

16247

Males

10070

M70-74

10070

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1
+13ft-16ft

Overall

18028

Males

10899

M70-74

10899

25.2M→FINISH

25.2 - 26.2 mi

Top 59%
×2
+22ft-21ft

Overall

17256

Males

10544

M70-74

10544

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1550
Passed By
1860
Net Change
-310
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15544
5K → 10K337226+111#15544#15433
10K → 15K176249-73#15433#15506
15K → 20K125263-138#15506#15644
20K → HALF2356-33#15644#15677
HALF → 25K132140-8#15677#15685
25K → 30K131359-228#15685#15913
30K → 20M11765+52#15913#15861
20M → 21M105104+1#15861#15860
21M → 35K9520+75#15860#15785
35K → 23M88120-32#15785#15817
23M → 24M9635+61#15817#15756
24M → 40K6272-10#15756#15766
40K → 25.2M1960-41#15766#15807
25.2M → FINISH4491-47#15807#15854
TOTALS15501860-310
📊

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