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BOSTON MARATHON 2025

Yizhen Huang

Bib: 10549•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 31%
Gender (Male)
#0 / 16105
Top 44%
Masters (Masters Men)
#0 / 10463
Top 32%
Division (M45-49)
#0 / 2386
Top 46%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:24/mi
22:59
↑ 97↓ 3451.5%
10K· 6.21 mi
7:13/mi
45:23
↑ 79↓ 1380.4%
15K· 9.32 mi
7:19/mi
1:08:07
↑ 67↓ 78
20K· 12.43 mi
7:22/mi
1:31:00
↑ 106↓ 860.1%
Half· 13.11 mi
7:15/mi
1:35:57
↑ 19↓ 370.5%
25K· 15.53 mi
7:48/mi
1:54:51
↑ 66↓ 880.2%
30K· 18.64 mi
7:34/mi
2:18:20
↑ 181↓ 1480.2%
20M
7:38/mi
2:28:42
↑ 64↓ 500.2%
21M
8:04/mi
2:36:46
↑ 106↓ 241.6%
35K· 21.75 mi
7:22/mi
2:42:17
↑ 17↓ 861.7%
23M
7:37/mi
2:51:49
↑ 23↓ 630.6%
24M
7:23/mi
2:59:12
↓ 821.3%
40K· 24.85 mi
7:29/mi
3:05:36
↓ 200.3%
25.2M
8:19/mi
3:08:28
↑ 13↓ 160.2%
Finish· 26.22 mi
7:28/mi
3:16:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:57
Pace7:19 /mi
2nd Half
Distance13.11 mi
Time1:40:08
Pace7:38 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:2522:597:2422:59
7:24
-
10K
6.21 mi11:11:4945:237:1822:24
7:13
-0:11
15K
9.32 mi11:34:331:08:077:1822:44
7:19
+0:06
20K
12.43 mi11:57:261:31:007:1922:53
7:22
+0:03
Half
13.11 mi12:02:231:35:577:194:57
7:15
-0:07
25K
15.53 mi12:21:171:54:517:2418:54
7:48
+0:33
30K
18.64 mi12:44:462:18:207:2523:29
7:34
-0:14
20M
20.00 mi12:55:082:28:427:2610:22
7:38
+0:04
21M
21.00 mi13:03:122:36:467:288:04
8:04
+0:26
35K
21.75 mi13:08:432:42:177:285:31
7:22
-0:42
23M
23.00 mi13:18:152:51:497:289:32
7:37
+0:15
24M
24.00 mi13:25:382:59:127:287:23
7:23
-0:14
40K
24.85 mi13:32:023:05:367:286:24
7:29
+0:06
25.2M
25.20 mi13:34:543:08:287:292:52
8:19
+0:50
Finish
26.22 mi13:42:313:16:057:297:37
7:28
-0:51

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

7:13 /mi

Average Pace

7:29 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:05:09

94% of race

Time at Steady Pace

10:56

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:29 /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 mi10:49:2522:597:2422:59
7:24
#11277
10K
6.21 mi11:11:4945:237:1822:24
7:13
#10362
15K
9.32 mi11:34:331:08:077:1822:44
7:19
#10278
20K
12.43 mi11:57:261:31:007:1922:53
7:22
#10070
Half
13.11 mi12:02:231:35:577:194:57
7:15
#10037
25K
15.53 mi12:21:171:54:517:2418:54
7:48
#10380
30K
18.64 mi12:44:462:18:207:2523:29
7:34
#9876
20M
20.00 mi12:55:082:28:427:2610:22
7:38
#9671
21M
21.00 mi13:03:122:36:467:288:04
8:04
#9514
35K
21.75 mi13:08:432:42:177:285:31
7:22
#9418
23M
23.00 mi13:18:152:51:497:289:32
7:37
#9232
24M
24.00 mi13:25:382:59:127:287:23
7:23
#9086
40K
24.85 mi13:32:023:05:367:286:24
7:29
#8944
25.2M
25.20 mi13:34:543:08:287:292:52
8:19
#8915
Finish
26.22 mi13:42:313:16:057:297:37
7:28
#8883
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi112778830883010114(Top 36%)8146(Top 51%)8146(Top 341%)
10K6.21 mi3.10 mi10362+9158351+4798351+4799570(Top 34%)7914(Top 49%)7914(Top 332%)
15K9.32 mi3.11 mi10278+848287+648287+6410114(Top 36%)8146(Top 51%)8146(Top 341%)
20K12.43 mi3.11 mi10070+2088142+1458142+1459582(Top 34%)7781(Top 48%)7781(Top 326%)
Half13.11 mi0.68 mi10037+338120+228120+229537(Top 34%)7772(Top 48%)7772(Top 326%)
25K15.53 mi2.42 mi10380-3438275-1558275-15512271(Top 43%)8970(Top 56%)8970(Top 376%)
30K18.64 mi3.11 mi9876+5047948+3277948+3278139(Top 29%)6665(Top 41%)6665(Top 279%)
20M20.00 mi1.36 mi9671+2057801+1477801+1477893(Top 28%)6380(Top 40%)6380(Top 267%)
21M21.00 mi1.00 mi9514+1577683+1187683+1187733(Top 27%)6116(Top 38%)6116(Top 256%)
35K21.75 mi0.75 mi9418+967609+747609+747717(Top 27%)6134(Top 38%)6134(Top 257%)
23M23.00 mi1.25 mi9232+1867463+1467463+1467332(Top 26%)5772(Top 36%)5772(Top 242%)
24M24.00 mi1.00 mi9086+1467354+1097354+1096943(Top 24%)5496(Top 34%)5496(Top 230%)
40K24.85 mi0.85 mi8944+1427238+1167238+1166726(Top 24%)5283(Top 33%)5283(Top 221%)
25.2M25.20 mi0.35 mi8915+297199+397199+397684(Top 27%)5743(Top 36%)5743(Top 241%)
Finish26.22 mi1.02 mi8883+327141+587141+588991(Top 32%)6431(Top 40%)6431(Top 270%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21story building
+97ft-345ft

Overall

10114

Males

8146

M45-49

8146

5K→10K

3.1 - 6.2 mi

Top 34%
×5story building
+79ft-138ft

Overall

9570

Males

7914

M45-49

7914

10K→15K

6.2 - 9.3 mi

Top 36%
×3story building
+67ft-78ft

Overall

10114

Males

8146

M45-49

8146

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

9582

Males

7781

M45-49

7781

20K→Half

12.4 - 13.1 mi

Top 34%
×2story building
+19ft-37ft

Overall

9537

Males

7772

M45-49

7772

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

12271

Males

8970

M45-49

8970

25K→30K

15.5 - 18.6 mi

Top 29%
×9story building
+181ft-148ft

Overall

8139

Males

6665

M45-49

6665

30K→20M

18.6 - 20.0 mi

Top 28%
×5story building
+64ft-50ft

Overall

7893

Males

6380

M45-49

6380

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

7733

Males

6116

M45-49

6116

21M→35K

21.0 - 21.8 mi

Top 27%
×7story building
+17ft-86ft

Overall

7717

Males

6134

M45-49

6134

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

7332

Males

5772

M45-49

5772

23M→24M

23.0 - 24.0 mi

Top 24%
×6story building
+12ft-82ft

Overall

6943

Males

5496

M45-49

5496

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6726

Males

5283

M45-49

5283

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7684

Males

5743

M45-49

5743

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2story building
+22ft-21ft

Overall

8991

Males

6431

M45-49

6431

Passing Analysis

Category:
Athletes Passed
3288*
Passed By
891
Net Change
+2394
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11277
5K → 10K94227+915#11277#10362
10K → 15K212128+84#10362#10278
15K → 20K28475+208#10278#10070
20K → Half4714+33#10070#10037
Half → 25K82424-343#10037#10380
25K → 30K530*26+504#10380#9876
30K → 20M22721+205#9876#9671
20M → 21M18124+157#9671#9514
21M → 35K1048+96#9514#9418
35K → 23M20923+186#9418#9232
23M → 24M16216+146#9232#9086
24M → 40K16523+142#9086#8944
40K → 25.2M5122+29#8944#8915
25.2M → Finish9260+32#8915#8883
TOTALS3288*891+2394

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

📊

Passing Visuals

Category:
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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