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BOSTON MARATHON 2025

Fan Zhou

Bib: 315•M

WA

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 6%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:22
Rank: #813
Start → 5K
18:22 | 5:55/mi
10K· 6.21 mi
36:40
Rank: #811 (+2)
5K → 10K
18:18 | 5:53/mi
15K· 9.32 mi
54:54
Rank: #764 (+47)
10K → 15K
18:14 | 5:52/mi
20K· 12.43 mi
1:13:16
Rank: #725 (+39)
15K → 20K
18:22 | 5:55/mi
Half· 13.11 mi
1:17:12
Rank: #713 (+12)
20K → Half
3:56 | 5:46/mi
25K· 15.53 mi
1:31:26
Rank: #658 (+55)
Half → 25K
14:14 | 5:52/mi
30K· 18.64 mi
1:49:50
Rank: #574 (+84)
25K → 30K
18:24 | 5:55/mi
20M
1:57:56
Rank: #555 (+19)
30K → 20M
8:06 | 5:58/mi
21M
2:04:11
Rank: #530 (+25)
20M → 21M
6:15 | 6:15/mi
35K· 21.75 mi
2:08:32
Rank: #515 (+15)
21M → 35K
4:21 | 5:49/mi
23M
2:16:03
Rank: #487 (+28)
35K → 23M
7:31 | 6:00/mi
24M
2:21:53
Rank: #473 (+14)
23M → 24M
5:50 | 5:50/mi
40K· 24.85 mi
2:26:52
Rank: #447 (+26)
24M → 40K
4:59 | 5:50/mi
25.2M
2:29:02
Rank: #437 (+10)
40K → 25.2M
2:10 | 6:17/mi
Finish· 26.22 mi
2:34:51
Rank: #423 (+14)
25.2M → Finish
5:49 | 5:42/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:17:12
Pace5:53 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:17:39
Pace5:55 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:3618:225:5518:22
5:55
-
10K
6.21 mi10:36:5436:405:5418:18
5:53
-0:02
15K
9.32 mi10:55:0854:545:5318:14
5:52
-0:01
20K
12.43 mi11:13:301:13:165:5418:22
5:55
+0:03
Half
13.11 mi11:17:261:17:125:533:56
5:46
-0:09
25K
15.53 mi11:31:401:31:265:5314:14
5:52
+0:06
30K
18.64 mi11:50:041:49:505:5418:24
5:55
+0:03
20M
20.00 mi11:58:101:57:565:548:06
5:58
+0:03
21M
21.00 mi12:04:252:04:115:556:15
6:15
+0:17
35K
21.75 mi12:08:462:08:325:554:21
5:49
-0:26
23M
23.00 mi12:16:172:16:035:557:31
6:00
+0:11
24M
24.00 mi12:22:072:21:535:555:50
5:50
-0:10
40K
24.85 mi12:27:062:26:525:554:59
5:50
0:00
25.2M
25.20 mi12:29:162:29:025:552:10
6:17
+0:27
Finish
26.22 mi12:35:052:34:515:555:49
5:42
-0:35

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

5:42 /mi

Average Pace

5:55 /mi

Slowest Pace

6:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:41

99% of race

Time at Steady Pace

2:10

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:54 /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 mi10:18:3618:225:5518:22
5:55
#813
10K
6.21 mi10:36:5436:405:5418:18
5:53
#811
15K
9.32 mi10:55:0854:545:5318:14
5:52
#764
20K
12.43 mi11:13:301:13:165:5418:22
5:55
#725
Half
13.11 mi11:17:261:17:125:533:56
5:46
#713
25K
15.53 mi11:31:401:31:265:5314:14
5:52
#658
30K
18.64 mi11:50:041:49:505:5418:24
5:55
#574
20M
20.00 mi11:58:101:57:565:548:06
5:58
#555
21M
21.00 mi12:04:252:04:115:556:15
6:15
#530
35K
21.75 mi12:08:462:08:325:554:21
5:49
#515
23M
23.00 mi12:16:172:16:035:557:31
6:00
#487
24M
24.00 mi12:22:072:21:535:555:50
5:50
#473
40K
24.85 mi12:27:062:26:525:554:59
5:50
#447
25.2M
25.20 mi12:29:162:29:025:552:10
6:17
#437
Finish
26.22 mi12:35:052:34:515:555:49
5:42
#423
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi813759759676(Top 2%)630(Top 4%)630(Top 11%)
10K6.21 mi3.10 mi811+2759759794(Top 3%)743(Top 5%)743(Top 13%)
15K9.32 mi3.11 mi764+47714+45714+45676(Top 2%)630(Top 4%)630(Top 11%)
20K12.43 mi3.11 mi725+39676+38676+38648(Top 2%)601(Top 4%)601(Top 11%)
Half13.11 mi0.68 mi713+12665+11665+11505(Top 2%)473(Top 3%)473(Top 8%)
25K15.53 mi2.42 mi658+55611+54611+54514(Top 2%)479(Top 3%)479(Top 8%)
30K18.64 mi3.11 mi574+84529+82529+82390(Top 1%)361(Top 2%)361(Top 6%)
20M20.00 mi1.36 mi555+19510+19510+19337(Top 1%)313(Top 2%)313(Top 6%)
21M21.00 mi1.00 mi530+25487+23487+23308(Top 1%)289(Top 2%)289(Top 5%)
35K21.75 mi0.75 mi515+15473+14473+14388(Top 1%)362(Top 2%)362(Top 6%)
23M23.00 mi1.25 mi487+28446+27446+27340(Top 1%)318(Top 2%)318(Top 6%)
24M24.00 mi1.00 mi473+14434+12434+12306(Top 1%)284(Top 2%)284(Top 5%)
40K24.85 mi0.85 mi447+26412+22412+22222(Top 0.8%)202(Top 1%)202(Top 4%)
25.2M25.20 mi0.35 mi437+10402+10402+10220(Top 0.8%)204(Top 1%)204(Top 4%)
Finish26.22 mi1.02 mi423+14389+13389+13371(Top 1%)348(Top 2%)348(Top 6%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

676

Males

630

M18-39

630

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

794

Males

743

M18-39

743

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

676

Males

630

M18-39

630

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

648

Males

601

M18-39

601

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

505

Males

473

M18-39

473

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

514

Males

479

M18-39

479

25K→30K

15.5 - 18.6 mi

Top 1%
×9stories
+181ft-148ft

Overall

390

Males

361

M18-39

361

30K→20M

18.6 - 20.0 mi

Top 1%
×5stories
+64ft-50ft

Overall

337

Males

313

M18-39

313

20M→21M

20.0 - 21.0 mi

Top 1%
×8stories
+106ft-24ft

Overall

308

Males

289

M18-39

289

21M→35K

21.0 - 21.8 mi

Top 1%
×7stories
+17ft-86ft

Overall

388

Males

362

M18-39

362

35K→23M

21.8 - 23.0 mi

Top 1%
×5stories
+23ft-63ft

Overall

340

Males

318

M18-39

318

23M→24M

23.0 - 24.0 mi

Top 1%
×6stories
+12ft-82ft

Overall

306

Males

284

M18-39

284

24M→40K

24.0 - 24.9 mi

Top 0.8%
×1story
+6ft-20ft

Overall

222

Males

202

M18-39

202

40K→25.2M

24.9 - 25.2 mi

Top 0.8%
×1story
+13ft-16ft

Overall

220

Males

204

M18-39

204

25.2M→Finish

25.2 - 26.2 mi

Top 1%
×2stories
+22ft-21ft

Overall

371

Males

348

M18-39

348

Passing Analysis

Category:
Athletes Passed
471
Passed By
81
Net Change
+390
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#813
5K → 10K4644+2#813#811
10K → 15K558+47#811#764
15K → 20K467+39#764#725
20K → Half131+12#725#713
Half → 25K583+55#713#658
25K → 30K851+84#658#574
30K → 20M212+19#574#555
20M → 21M261+25#555#530
21M → 35K194+15#530#515
35K → 23M313+28#515#487
23M → 24M173+14#487#473
24M → 40K271+26#473#447
40K → 25.2M111+10#447#437
25.2M → Finish162+14#437#423
TOTALS47181+390
📊

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