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BOSTON MARATHON 2025

Zachary Duval

Bib: 673•M

MI

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 1%
Gender (Male)
#0 / 16105
Top 2%
Division (M18-39)
#0 / 5642
Top 5%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:34
Rank: #368
Start → 5K
17:34 | 5:39/mi
10K· 6.21 mi
35:09
Rank: #359 (+9)
5K → 10K
17:35 | 5:40/mi
15K· 9.32 mi
52:58
Rank: #378 (-19)
10K → 15K
17:49 | 5:44/mi
20K· 12.43 mi
1:10:48
Rank: #374 (+4)
15K → 20K
17:50 | 5:44/mi
Half· 13.11 mi
1:14:43
Rank: #380 (-6)
20K → Half
3:55 | 5:44/mi
25K· 15.53 mi
1:28:40
Rank: #371 (+9)
Half → 25K
13:57 | 5:45/mi
30K· 18.64 mi
1:46:50
Rank: #343 (+28)
25K → 30K
18:10 | 5:51/mi
20M
1:54:56
Rank: #329 (+14)
30K → 20M
8:06 | 5:58/mi
21M
2:01:17
Rank: #325 (+4)
20M → 21M
6:21 | 6:21/mi
35K· 21.75 mi
2:05:43
Rank: #331 (-6)
21M → 35K
4:26 | 5:56/mi
23M
2:13:36
Rank: #340 (-9)
35K → 23M
7:53 | 6:18/mi
24M
2:19:39
Rank: #343 (-3)
23M → 24M
6:03 | 6:03/mi
40K· 24.85 mi
2:24:49
Rank: #334 (+9)
24M → 40K
5:10 | 6:03/mi
25.2M
2:27:05
Rank: #329 (+5)
40K → 25.2M
2:16 | 6:34/mi
Finish· 26.22 mi
2:32:52
Rank: #314 (+15)
25.2M → Finish
5:47 | 5:41/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:14:43
Pace5:42 /mi
2nd Half
Distance13.11 mi
Time1:18:09
Pace5:58 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:5717:345:3917:34
5:39
-
10K
6.21 mi10:35:3235:095:3917:35
5:40
+0:01
15K
9.32 mi10:53:2152:585:4117:49
5:44
+0:04
20K
12.43 mi11:11:111:10:485:4217:50
5:44
0:00
Half
13.11 mi11:15:061:14:435:423:55
5:44
0:00
25K
15.53 mi11:29:031:28:405:4213:57
5:45
+0:01
30K
18.64 mi11:47:131:46:505:4418:10
5:51
+0:06
20M
20.00 mi11:55:191:54:565:458:06
5:58
+0:07
21M
21.00 mi12:01:402:01:175:476:21
6:21
+0:23
35K
21.75 mi12:06:062:05:435:474:26
5:56
-0:25
23M
23.00 mi12:13:592:13:365:497:53
6:18
+0:22
24M
24.00 mi12:20:022:19:395:496:03
6:03
-0:15
40K
24.85 mi12:25:122:24:495:505:10
6:03
0:00
25.2M
25.20 mi12:27:282:27:055:502:16
6:34
+0:31
Finish
26.22 mi12:33:152:32:525:505:47
5:41
-0:53

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

5:39 /mi

Average Pace

5:50 /mi

Slowest Pace

6:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:16:22

89% of race

Time at Steady Pace

16:30

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:50 /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 mi10:17:5717:345:3917:34
5:39
#368
10K
6.21 mi10:35:3235:095:3917:35
5:40
#359
15K
9.32 mi10:53:2152:585:4117:49
5:44
#378
20K
12.43 mi11:11:111:10:485:4217:50
5:44
#374
Half
13.11 mi11:15:061:14:435:423:55
5:44
#380
25K
15.53 mi11:29:031:28:405:4213:57
5:45
#371
30K
18.64 mi11:47:131:46:505:4418:10
5:51
#343
20M
20.00 mi11:55:191:54:565:458:06
5:58
#329
21M
21.00 mi12:01:402:01:175:476:21
6:21
#325
35K
21.75 mi12:06:062:05:435:474:26
5:56
#331
23M
23.00 mi12:13:592:13:365:497:53
6:18
#340
24M
24.00 mi12:20:022:19:395:496:03
6:03
#343
40K
24.85 mi12:25:122:24:495:505:10
6:03
#334
25.2M
25.20 mi12:27:282:27:055:502:16
6:34
#329
Finish
26.22 mi12:33:152:32:525:505:47
5:41
#314
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi368335335429(Top 2%)398(Top 2%)398(Top 7%)
10K6.21 mi3.10 mi359+9328+7328+7374(Top 1%)344(Top 2%)344(Top 6%)
15K9.32 mi3.11 mi378-19347-19347-19429(Top 2%)398(Top 2%)398(Top 7%)
20K12.43 mi3.11 mi374+4344+3344+3365(Top 1%)336(Top 2%)336(Top 6%)
Half13.11 mi0.68 mi380-6349-5349-5464(Top 2%)434(Top 3%)434(Top 8%)
25K15.53 mi2.42 mi371+9340+9340+9352(Top 1%)326(Top 2%)326(Top 6%)
30K18.64 mi3.11 mi343+28314+26314+26288(Top 1%)265(Top 2%)265(Top 5%)
20M20.00 mi1.36 mi329+14301+13301+13333(Top 1%)309(Top 2%)309(Top 5%)
21M21.00 mi1.00 mi325+4298+3298+3423(Top 1%)398(Top 2%)398(Top 7%)
35K21.75 mi0.75 mi331-6303-5303-5554(Top 2%)513(Top 3%)513(Top 9%)
23M23.00 mi1.25 mi340-9313-10313-10856(Top 3%)807(Top 5%)807(Top 14%)
24M24.00 mi1.00 mi343-3316-3316-3654(Top 2%)612(Top 4%)612(Top 11%)
40K24.85 mi0.85 mi334+9307+9307+9436(Top 2%)404(Top 3%)404(Top 7%)
25.2M25.20 mi0.35 mi329+5302+5302+5535(Top 2%)495(Top 3%)495(Top 9%)
Finish26.22 mi1.02 mi314+15288+14288+14322(Top 1%)301(Top 2%)301(Top 5%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

429

Males

398

M18-39

398

5K→10K

3.1 - 6.2 mi

Top 1%
×5stories
+79ft-138ft

Overall

374

Males

344

M18-39

344

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

429

Males

398

M18-39

398

15K→20K

9.3 - 12.4 mi

Top 1%
×5stories
+106ft-86ft

Overall

365

Males

336

M18-39

336

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

464

Males

434

M18-39

434

Half→25K

13.1 - 15.5 mi

Top 1%
×4stories
+66ft-88ft

Overall

352

Males

326

M18-39

326

25K→30K

15.5 - 18.6 mi

Top 1%
×9stories
+181ft-148ft

Overall

288

Males

265

M18-39

265

30K→20M

18.6 - 20.0 mi

Top 1%
×5stories
+64ft-50ft

Overall

333

Males

309

M18-39

309

20M→21M

20.0 - 21.0 mi

Top 1%
×8stories
+106ft-24ft

Overall

423

Males

398

M18-39

398

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

554

Males

513

M18-39

513

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

856

Males

807

M18-39

807

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

654

Males

612

M18-39

612

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

436

Males

404

M18-39

404

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

535

Males

495

M18-39

495

25.2M→Finish

25.2 - 26.2 mi

Top 1%
×2stories
+22ft-21ft

Overall

322

Males

301

M18-39

301

Passing Analysis

Category:
Athletes Passed
180
Passed By
126
Net Change
+54
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#368
5K → 10K2415+9#368#359
10K → 15K1534-19#359#378
15K → 20K1915+4#378#374
20K → Half17-6#374#380
Half → 25K156+9#380#371
25K → 30K335+28#371#343
30K → 20M173+14#343#329
20M → 21M62+4#329#325
21M → 35K06-6#325#331
35K → 23M1019-9#331#340
23M → 24M710-3#340#343
24M → 40K123+9#343#334
40K → 25.2M61+5#334#329
25.2M → Finish150+15#329#314
TOTALS180126+54
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing