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BOSTON MARATHON 2025

Yang Chen

Bib: 9548•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 38%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 40%
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:29
Rank: #12719
Start → 5K
23:29 | 7:34/mi
10K· 6.21 mi
45:43
Rank: #10838 (+1881)
5K → 10K
22:14 | 7:09/mi
15K· 9.32 mi
1:07:42
Rank: #9882 (+956)
10K → 15K
21:59 | 7:05/mi
20K· 12.43 mi
1:30:44
Rank: #9883 (-1)
15K → 20K
23:02 | 7:25/mi
Half· 13.11 mi
1:36:06
Rank: #10137 (-254)
20K → Half
5:22 | 7:52/mi
25K· 15.53 mi
1:54:04
Rank: #9934 (+203)
Half → 25K
17:58 | 7:25/mi
30K· 18.64 mi
2:19:11
Rank: #10276 (-342)
25K → 30K
25:07 | 8:05/mi
20M
2:29:55
Rank: #10215 (+61)
30K → 20M
10:44 | 7:54/mi
21M
2:38:28
Rank: #10214 (+1)
20M → 21M
8:33 | 8:33/mi
35K· 21.75 mi
2:44:43
Rank: #10402 (-188)
21M → 35K
6:15 | 8:21/mi
23M
2:55:40
Rank: #10644 (-242)
35K → 23M
10:57 | 8:45/mi
24M
3:04:16
Rank: #10836 (-192)
23M → 24M
8:36 | 8:36/mi
40K· 24.85 mi
3:11:34
Rank: #10911 (-75)
24M → 40K
7:18 | 8:32/mi
25.2M
3:14:25
Rank: #10851 (+60)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:22:31
Rank: #10888 (-37)
25.2M → Finish
8:06 | 7:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:06
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:46:25
Pace8:07 /mi
📊Positive Split: 10.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:1223:297:3423:29
7:34
-
10K
6.21 mi11:11:2645:437:2122:14
7:09
-0:25
15K
9.32 mi11:33:251:07:427:1621:59
7:05
-0:04
20K
12.43 mi11:56:271:30:447:1823:02
7:25
+0:20
Half
13.11 mi12:01:491:36:067:205:22
7:52
+0:27
25K
15.53 mi12:19:471:54:047:2117:58
7:25
-0:27
30K
18.64 mi12:44:542:19:117:2825:07
8:05
+0:40
20M
20.00 mi12:55:382:29:557:3010:44
7:54
-0:11
21M
21.00 mi13:04:112:38:287:338:33
8:33
+0:39
35K
21.75 mi13:10:262:44:437:346:15
8:21
-0:12
23M
23.00 mi13:21:232:55:407:3810:57
8:45
+0:24
24M
24.00 mi13:29:593:04:167:418:36
8:36
-0:09
40K
24.85 mi13:37:173:11:347:427:18
8:32
-0:04
25.2M
25.20 mi13:40:083:14:257:432:51
8:16
-0:16
Finish
26.22 mi13:48:143:22:317:448:06
7:57
-0:19

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

7:05 /mi

Average Pace

7:44 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:42

54% of race

Time at Steady Pace

49:19

24% of race

Time at Slower Pace

44:30

22% of race

Average Pace: 7:43 /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 mi10:49:1223:297:3423:29
7:34
#12719
10K
6.21 mi11:11:2645:437:2122:14
7:09
#10838
15K
9.32 mi11:33:251:07:427:1621:59
7:05
#9882
20K
12.43 mi11:56:271:30:447:1823:02
7:25
#9883
Half
13.11 mi12:01:491:36:067:205:22
7:52
#10137
25K
15.53 mi12:19:471:54:047:2117:58
7:25
#9934
30K
18.64 mi12:44:542:19:117:2825:07
8:05
#10276
20M
20.00 mi12:55:382:29:557:3010:44
7:54
#10215
21M
21.00 mi13:04:112:38:287:338:33
8:33
#10214
35K
21.75 mi13:10:262:44:437:346:15
8:21
#10402
23M
23.00 mi13:21:232:55:407:3810:57
8:45
#10644
24M
24.00 mi13:29:593:04:167:418:36
8:36
#10836
40K
24.85 mi13:37:173:11:347:427:18
8:32
#10911
25.2M
25.20 mi13:40:083:14:257:432:51
8:16
#10851
Finish
26.22 mi13:48:143:22:317:448:06
7:57
#10888
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi12719950995098164(Top 29%)7045(Top 44%)7045(Top 314%)
10K6.21 mi3.10 mi10838+18818580+9298580+9299124(Top 32%)7678(Top 48%)7678(Top 342%)
15K9.32 mi3.11 mi9882+9568071+5098071+5098164(Top 29%)7045(Top 44%)7045(Top 314%)
20K12.43 mi3.11 mi9883-18043+288043+2810007(Top 35%)8015(Top 50%)8015(Top 357%)
Half13.11 mi0.68 mi10137-2548178-1358178-13514720(Top 52%)10195(Top 63%)10195(Top 454%)
25K15.53 mi2.42 mi9934+2038036+1428036+1429241(Top 33%)7474(Top 46%)7474(Top 333%)
30K18.64 mi3.11 mi10276-3428161-1258161-12511974(Top 42%)8661(Top 54%)8661(Top 385%)
20M20.00 mi1.36 mi10215+618092+698092+699710(Top 34%)7381(Top 46%)7381(Top 328%)
21M21.00 mi1.00 mi10214+18039+538039+5310778(Top 38%)7758(Top 48%)7758(Top 345%)
35K21.75 mi0.75 mi10402-1888111-728111-7214568(Top 51%)9522(Top 59%)9522(Top 424%)
23M23.00 mi1.25 mi10644-2428191-808191-8014774(Top 52%)9518(Top 59%)9518(Top 424%)
24M24.00 mi1.00 mi10836-1928242-518242-5115126(Top 53%)9628(Top 60%)9628(Top 428%)
40K24.85 mi0.85 mi10911-758238+48238+413636(Top 48%)8817(Top 55%)8817(Top 392%)
25.2M25.20 mi0.35 mi10851+608193+458193+457459(Top 26%)5624(Top 35%)5624(Top 250%)
Finish26.22 mi1.02 mi10888-378176+178176+1712510(Top 44%)8282(Top 51%)8282(Top 369%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21stories
+97ft-345ft

Overall

8164

Males

7045

M40-44

7045

5K→10K

3.1 - 6.2 mi

Top 32%
×5stories
+79ft-138ft

Overall

9124

Males

7678

M40-44

7678

10K→15K

6.2 - 9.3 mi

Top 29%
×3stories
+67ft-78ft

Overall

8164

Males

7045

M40-44

7045

15K→20K

9.3 - 12.4 mi

Top 35%
×5stories
+106ft-86ft

Overall

10007

Males

8015

M40-44

8015

20K→Half

12.4 - 13.1 mi

Top 52%
×2stories
+19ft-37ft

Overall

14720

Males

10195

M40-44

10195

Half→25K

13.1 - 15.5 mi

Top 33%
×4stories
+66ft-88ft

Overall

9241

Males

7474

M40-44

7474

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

11974

Males

8661

M40-44

8661

30K→20M

18.6 - 20.0 mi

Top 34%
×5stories
+64ft-50ft

Overall

9710

Males

7381

M40-44

7381

20M→21M

20.0 - 21.0 mi

Top 38%
×8stories
+106ft-24ft

Overall

10778

Males

7758

M40-44

7758

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

14568

Males

9522

M40-44

9522

35K→23M

21.8 - 23.0 mi

Top 52%
×5stories
+23ft-63ft

Overall

14774

Males

9518

M40-44

9518

23M→24M

23.0 - 24.0 mi

Top 53%
×6stories
+12ft-82ft

Overall

15126

Males

9628

M40-44

9628

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

13636

Males

8817

M40-44

8817

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7459

Males

5624

M40-44

5624

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

12510

Males

8282

M40-44

8282

Passing Analysis

Category:
Athletes Passed
3972*
Passed By
2136
Net Change
+1831
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12719
5K → 10K18854+1881#12719#10838
10K → 15K957*1+956#10838#9882
15K → 20K194194-1#9882#9883
20K → Half0252-254#9883#10137
Half → 25K248*45+203#10137#9934
25K → 30K143483-342#9934#10276
30K → 20M14685+61#10276#10215
20M → 21M111110+1#10215#10214
21M → 35K21209-188#10214#10402
35K → 23M54296-242#10402#10644
23M → 24M37229-192#10644#10836
24M → 40K47122-75#10836#10911
40K → 25.2M7212+60#10911#10851
25.2M → Finish5794-37#10851#10888
TOTALS3972*2136+1831

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

📊

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