Boston Marathon logo
BOSTON MARATHON 2025

Erik Zukauskas

Bib: 12798•M

CT

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 46%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 49%
Division (M45-49)
#0 / 2386
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:36
Rank: #10090
Start → 5K
22:36 | 7:16/mi
10K· 6.21 mi
44:44
Rank: #9450 (+640)
5K → 10K
22:08 | 7:07/mi
15K· 9.32 mi
1:07:45
Rank: #9923 (-473)
10K → 15K
23:01 | 7:25/mi
20K· 12.43 mi
1:31:50
Rank: #10658 (-735)
15K → 20K
24:05 | 7:45/mi
Half· 13.11 mi
1:37:09
Rank: #10839 (-181)
20K → Half
5:19 | 7:48/mi
25K· 15.53 mi
1:56:33
Rank: #11353 (-514)
Half → 25K
19:24 | 8:00/mi
30K· 18.64 mi
2:22:53
Rank: #11955 (-602)
25K → 30K
26:20 | 8:29/mi
20M
2:35:03
Rank: #12350 (-395)
30K → 20M
12:10 | 8:57/mi
21M
2:44:29
Rank: #12557 (-207)
20M → 21M
9:26 | 9:26/mi
35K· 21.75 mi
2:50:42
Rank: #12608 (-51)
21M → 35K
6:13 | 8:19/mi
23M
3:02:07
Rank: #12901 (-293)
35K → 23M
11:25 | 9:07/mi
24M
3:10:41
Rank: #13001 (-100)
23M → 24M
8:34 | 8:34/mi
40K· 24.85 mi
3:18:23
Rank: #13121 (-120)
24M → 40K
7:42 | 9:00/mi
25.2M
3:21:36
Rank: #13139 (-18)
40K → 25.2M
3:13 | 9:20/mi
Finish· 26.22 mi
3:29:54
Rank: #13186 (-47)
25.2M → Finish
8:18 | 8:09/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:09
Pace7:25 /mi
2nd Half
Distance13.11 mi
Time1:52:45
Pace8:36 /mi
📊Positive Split: 16.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:0322:367:1622:36
7:16
-
10K
6.21 mi11:12:1144:447:1222:08
7:07
-0:09
15K
9.32 mi11:35:121:07:457:1623:01
7:25
+0:18
20K
12.43 mi11:59:171:31:507:2324:05
7:45
+0:20
Half
13.11 mi12:04:361:37:097:255:19
7:48
+0:03
25K
15.53 mi12:24:001:56:337:3019:24
8:00
+0:12
30K
18.64 mi12:50:202:22:537:4026:20
8:29
+0:29
20M
20.00 mi13:02:302:35:037:4512:10
8:57
+0:28
21M
21.00 mi13:11:562:44:297:509:26
9:26
+0:29
35K
21.75 mi13:18:092:50:427:516:13
8:19
-1:07
23M
23.00 mi13:29:343:02:077:5511:25
9:07
+0:48
24M
24.00 mi13:38:083:10:417:578:34
8:34
-0:33
40K
24.85 mi13:45:503:18:237:597:42
9:00
+0:26
25.2M
25.20 mi13:49:033:21:368:003:13
9:20
+0:20
Finish
26.22 mi13:57:213:29:548:018:18
8:09
-1:11

Checkpoints & Pacing

📈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

7:07 /mi

Average Pace

8:01 /mi

Slowest Pace

9:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:09

46% of race

Time at Steady Pace

1:08:49

33% of race

Time at Slower Pace

43:56

21% of race

Average Pace: 8:00 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:50:0322:367:1622:36
7:16
#10090
10K
6.21 mi11:12:1144:447:1222:08
7:07
#9450
15K
9.32 mi11:35:121:07:457:1623:01
7:25
#9923
20K
12.43 mi11:59:171:31:507:2324:05
7:45
#10658
Half
13.11 mi12:04:361:37:097:255:19
7:48
#10839
25K
15.53 mi12:24:001:56:337:3019:24
8:00
#11353
30K
18.64 mi12:50:202:22:537:4026:20
8:29
#11955
20M
20.00 mi13:02:302:35:037:4512:10
8:57
#12350
21M
21.00 mi13:11:562:44:297:509:26
9:26
#12557
35K
21.75 mi13:18:092:50:427:516:13
8:19
#12608
23M
23.00 mi13:29:343:02:077:5511:25
9:07
#12901
24M
24.00 mi13:38:083:10:417:578:34
8:34
#13001
40K
24.85 mi13:45:503:18:237:597:42
9:00
#13121
25.2M
25.20 mi13:49:033:21:368:003:13
9:20
#13139
Finish
26.22 mi13:57:213:29:548:018:18
8:09
#13186
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi100908224822410952(Top 39%)8571(Top 53%)8571(Top 359%)
10K6.21 mi3.10 mi9450+6407876+3487876+3488873(Top 31%)7529(Top 47%)7529(Top 316%)
15K9.32 mi3.11 mi9923-4738089-2138089-21310952(Top 39%)8571(Top 53%)8571(Top 359%)
20K12.43 mi3.11 mi10658-7358450-3618450-36112851(Top 45%)9351(Top 58%)9351(Top 392%)
Half13.11 mi0.68 mi10839-1818549-998549-9914142(Top 50%)9954(Top 62%)9954(Top 417%)
25K15.53 mi2.42 mi11353-5148755-2068755-20613887(Top 49%)9695(Top 60%)9695(Top 406%)
30K18.64 mi3.11 mi11955-6028952-1978952-19714595(Top 51%)9879(Top 61%)9879(Top 414%)
20M20.00 mi1.36 mi12350-3959100-1489100-14816525(Top 58%)10588(Top 66%)10588(Top 444%)
21M21.00 mi1.00 mi12557-2079159-599159-5915755(Top 55%)10128(Top 63%)10128(Top 424%)
35K21.75 mi0.75 mi12608-519155+49155+414264(Top 50%)9395(Top 58%)9395(Top 394%)
23M23.00 mi1.25 mi12901-2939260-1059260-10516892(Top 59%)10454(Top 65%)10454(Top 438%)
24M24.00 mi1.00 mi13001-1009260926014906(Top 52%)9533(Top 59%)9533(Top 400%)
40K24.85 mi0.85 mi13121-1209292-329292-3216295(Top 57%)10044(Top 62%)10044(Top 421%)
25.2M25.20 mi0.35 mi13139-189290+29290+213552(Top 48%)8722(Top 54%)8722(Top 366%)
Finish26.22 mi1.02 mi13186-479285+59285+513882(Top 49%)8951(Top 56%)8951(Top 375%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21stories
+97ft-345ft

Overall

10952

Males

8571

M45-49

8571

5K→10K

3.1 - 6.2 mi

Top 31%
×5stories
+79ft-138ft

Overall

8873

Males

7529

M45-49

7529

10K→15K

6.2 - 9.3 mi

Top 39%
×3stories
+67ft-78ft

Overall

10952

Males

8571

M45-49

8571

15K→20K

9.3 - 12.4 mi

Top 45%
×5stories
+106ft-86ft

Overall

12851

Males

9351

M45-49

9351

20K→Half

12.4 - 13.1 mi

Top 50%
×2stories
+19ft-37ft

Overall

14142

Males

9954

M45-49

9954

Half→25K

13.1 - 15.5 mi

Top 49%
×4stories
+66ft-88ft

Overall

13887

Males

9695

M45-49

9695

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

14595

Males

9879

M45-49

9879

30K→20M

18.6 - 20.0 mi

Top 58%
×5stories
+64ft-50ft

Overall

16525

Males

10588

M45-49

10588

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

15755

Males

10128

M45-49

10128

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

14264

Males

9395

M45-49

9395

35K→23M

21.8 - 23.0 mi

Top 59%
×5stories
+23ft-63ft

Overall

16892

Males

10454

M45-49

10454

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

14906

Males

9533

M45-49

9533

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

16295

Males

10044

M45-49

10044

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13552

Males

8722

M45-49

8722

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

13882

Males

8951

M45-49

8951

Passing Analysis

Category:
Athletes Passed
1333*
Passed By
4426
Net Change
-3096
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10090
5K → 10K692*52+640#10090#9450
10K → 15K59531-473#9450#9923
15K → 20K45778-735#9923#10658
20K → Half7188-181#10658#10839
Half → 25K65579-514#10839#11353
25K → 30K100702-602#11353#11955
30K → 20M45440-395#11955#12350
20M → 21M50257-207#12350#12557
21M → 35K52103-51#12557#12608
35K → 23M47340-293#12608#12901
23M → 24M52152-100#12901#13001
24M → 40K47167-120#13001#13121
40K → 25.2M2644-18#13121#13139
25.2M → Finish4693-47#13139#13186
TOTALS1333*4426-3096

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

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

.gpx files up to 10MB

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