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BOSTON MARATHON 2025

Bo Yan

Bib: 12724•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
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
7:34/mi
23:30
↑ 97↓ 3451.5%
10K· 6.21 mi
7:45/mi
47:36
↑ 79↓ 1380.4%
15K· 9.32 mi
7:48/mi
1:11:50
↑ 67↓ 78
20K· 12.43 mi
8:00/mi
1:36:41
↑ 106↓ 860.1%
Half· 13.11 mi
8:07/mi
1:42:13
↑ 19↓ 370.5%
25K· 15.53 mi
8:08/mi
2:01:56
↑ 66↓ 880.2%
30K· 18.64 mi
8:31/mi
2:28:23
↑ 181↓ 1480.2%
20M
8:34/mi
2:40:02
↑ 64↓ 500.2%
21M
9:06/mi
2:49:08
↑ 106↓ 241.6%
35K· 21.75 mi
8:11/mi
2:55:15
↑ 17↓ 861.7%
23M
8:46/mi
3:06:13
↑ 23↓ 630.6%
24M
8:29/mi
3:14:42
↓ 821.3%
40K· 24.85 mi
8:37/mi
3:22:04
↓ 200.3%
25.2M
9:37/mi
3:25:23
↑ 13↓ 160.2%
Finish· 26.22 mi
8:29/mi
3:34:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:13
Pace7:48 /mi
2nd Half
Distance13.11 mi
Time1:51:49
Pace8:32 /mi
📊Positive Split: 9.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:4323:307:3423:30
7:34
-
10K
6.21 mi11:15:4947:367:4024:06
7:45
+0:11
15K
9.32 mi11:40:031:11:507:4224:14
7:48
+0:03
20K
12.43 mi12:04:541:36:417:4724:51
8:00
+0:12
Half
13.11 mi12:10:261:42:137:485:32
8:07
+0:07
25K
15.53 mi12:30:092:01:567:5119:43
8:08
+0:01
30K
18.64 mi12:56:362:28:237:5826:27
8:31
+0:23
20M
20.00 mi13:08:152:40:028:0011:39
8:34
+0:03
21M
21.00 mi13:17:212:49:088:039:06
9:06
+0:32
35K
21.75 mi13:23:282:55:158:036:07
8:11
-0:55
23M
23.00 mi13:34:263:06:138:0610:58
8:46
+0:35
24M
24.00 mi13:42:553:14:428:078:29
8:29
-0:17
40K
24.85 mi13:50:173:22:048:087:22
8:37
+0:08
25.2M
25.20 mi13:53:363:25:238:093:19
9:37
+1:00
Finish
26.22 mi14:02:153:34:028:108:39
8:29
-1:08

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

7:34 /mi

Average Pace

8:10 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:03

60% of race

Time at Steady Pace

1:02:36

29% of race

Time at Slower Pace

23:23

11% of race

Average Pace: 8:10 /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 mi10:51:4323:307:3423:30
7:34
#12781
10K
6.21 mi11:15:4947:367:4024:06
7:45
#13588
15K
9.32 mi11:40:031:11:507:4224:14
7:48
#13805
20K
12.43 mi12:04:541:36:417:4724:51
8:00
#14086
Half
13.11 mi12:10:261:42:137:485:32
8:07
#14221
25K
15.53 mi12:30:092:01:567:5119:43
8:08
#14306
30K
18.64 mi12:56:362:28:237:5826:27
8:31
#14363
20M
20.00 mi13:08:152:40:028:0011:39
8:34
#14336
21M
21.00 mi13:17:212:49:088:039:06
9:06
#14306
35K
21.75 mi13:23:282:55:158:036:07
8:11
#14268
23M
23.00 mi13:34:263:06:138:0610:58
8:46
#14315
24M
24.00 mi13:42:553:14:428:078:29
8:29
#14293
40K
24.85 mi13:50:173:22:048:087:22
8:37
#14257
25.2M
25.20 mi13:53:363:25:238:093:19
9:37
#14264
Finish
26.22 mi14:02:153:34:028:108:39
8:29
#14297
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi127819549954914362(Top 51%)10077(Top 63%)10077(Top 422%)
10K6.21 mi3.10 mi13588-8079849-3009849-30014387(Top 51%)10162(Top 63%)10162(Top 426%)
15K9.32 mi3.11 mi13805-2179914-659914-6514362(Top 51%)10077(Top 63%)10077(Top 422%)
20K12.43 mi3.11 mi14086-2819992-789992-7814900(Top 52%)10266(Top 64%)10266(Top 430%)
Half13.11 mi0.68 mi14221-13510044-5210044-5216618(Top 59%)11013(Top 68%)11013(Top 462%)
25K15.53 mi2.42 mi14306-8510041+310041+314827(Top 52%)10128(Top 63%)10128(Top 424%)
30K18.64 mi3.11 mi14363-5710005+3610005+3614826(Top 52%)9975(Top 62%)9975(Top 418%)
20M20.00 mi1.36 mi14336+279974+319974+3114231(Top 50%)9564(Top 59%)9564(Top 401%)
21M21.00 mi1.00 mi14306+309937+379937+3714075(Top 50%)9364(Top 58%)9364(Top 392%)
35K21.75 mi0.75 mi14268+389900+379900+3713434(Top 47%)9010(Top 56%)9010(Top 378%)
23M23.00 mi1.25 mi14315-479888+129888+1214858(Top 52%)9561(Top 59%)9561(Top 401%)
24M24.00 mi1.00 mi14293+229846+429846+4214375(Top 51%)9319(Top 58%)9319(Top 391%)
40K24.85 mi0.85 mi14257+369797+499797+4914132(Top 50%)9059(Top 56%)9059(Top 380%)
25.2M25.20 mi0.35 mi14264-79794+39794+315123(Top 53%)9462(Top 59%)9462(Top 397%)
Finish26.22 mi1.02 mi14297-339777+179777+1716117(Top 57%)9983(Top 62%)9983(Top 418%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

14362

Males

10077

M45-49

10077

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

14387

Males

10162

M45-49

10162

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

14362

Males

10077

M45-49

10077

15K→20K

9.3 - 12.4 mi

Top 52%
×5story building
+106ft-86ft

Overall

14900

Males

10266

M45-49

10266

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

16618

Males

11013

M45-49

11013

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

14827

Males

10128

M45-49

10128

25K→30K

15.5 - 18.6 mi

Top 52%
×9story building
+181ft-148ft

Overall

14826

Males

9975

M45-49

9975

30K→20M

18.6 - 20.0 mi

Top 50%
×5story building
+64ft-50ft

Overall

14231

Males

9564

M45-49

9564

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

14075

Males

9364

M45-49

9364

21M→35K

21.0 - 21.8 mi

Top 47%
×7story building
+17ft-86ft

Overall

13434

Males

9010

M45-49

9010

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

14858

Males

9561

M45-49

9561

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

14375

Males

9319

M45-49

9319

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

14132

Males

9059

M45-49

9059

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

15123

Males

9462

M45-49

9462

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

16117

Males

9983

M45-49

9983

Passing Analysis

Category:
Athletes Passed
1402
Passed By
2918
Net Change
-1516
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12781
5K → 10K69876-807#12781#13588
10K → 15K130347-217#13588#13805
15K → 20K134415-281#13805#14086
20K → Half3138-135#14086#14221
Half → 25K142227-85#14221#14306
25K → 30K234291-57#14306#14363
30K → 20M12699+27#14363#14336
20M → 21M12292+30#14336#14306
21M → 35K8648+38#14306#14268
35K → 23M97144-47#14268#14315
23M → 24M8361+22#14315#14293
24M → 40K8549+36#14293#14257
40K → 25.2M2936-7#14257#14264
25.2M → Finish6295-33#14264#14297
TOTALS14022918-1516
📊

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