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BOSTON MARATHON 2025

Yongfu Gong

Bib: 15105•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 46%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 49%
Division (M55-59)
#0 / 1648
Top 37%
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
22:58
↑ 97↓ 3451.5%
10K· 6.21 mi
7:32/mi
46:21
↑ 79↓ 1380.4%
15K· 9.32 mi
7:31/mi
1:09:43
↑ 67↓ 78
20K· 12.43 mi
7:47/mi
1:33:53
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:39:05
↑ 19↓ 370.5%
25K· 15.53 mi
7:56/mi
1:58:20
↑ 66↓ 880.2%
30K· 18.64 mi
8:10/mi
2:23:43
↑ 181↓ 1480.2%
20M
8:56/mi
2:35:51
↑ 64↓ 500.2%
21M
9:05/mi
2:44:56
↑ 106↓ 241.6%
35K· 21.75 mi
8:25/mi
2:51:14
↑ 17↓ 861.7%
23M
8:37/mi
3:02:01
↑ 23↓ 630.6%
24M
8:28/mi
3:10:29
↓ 821.3%
40K· 24.85 mi
8:46/mi
3:17:59
↓ 200.3%
25.2M
9:54/mi
3:21:24
↑ 13↓ 160.2%
Finish· 26.22 mi
8:22/mi
3:29:56
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:05
Pace7:33 /mi
2nd Half
Distance13.11 mi
Time1:50:51
Pace8:27 /mi
📊Positive Split: 11.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:2722:587:2422:58
7:24
-
10K
6.21 mi11:17:5046:217:2823:23
7:32
+0:08
15K
9.32 mi11:41:121:09:437:2923:22
7:31
-0:01
20K
12.43 mi12:05:221:33:537:3324:10
7:47
+0:16
Half
13.11 mi12:10:341:39:057:335:12
7:37
-0:10
25K
15.53 mi12:29:491:58:207:3719:15
7:56
+0:19
30K
18.64 mi12:55:122:23:437:4325:23
8:10
+0:14
20M
20.00 mi13:07:202:35:517:4812:08
8:56
+0:46
21M
21.00 mi13:16:252:44:567:519:05
9:05
+0:09
35K
21.75 mi13:22:432:51:147:526:18
8:25
-0:40
23M
23.00 mi13:33:303:02:017:5510:47
8:37
+0:12
24M
24.00 mi13:41:583:10:297:568:28
8:28
-0:09
40K
24.85 mi13:49:283:17:597:587:30
8:46
+0:18
25.2M
25.20 mi13:52:533:21:248:003:25
9:54
+1:08
Finish
26.22 mi14:01:253:29:568:018:32
8:22
-1:32

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

7:24 /mi

Average Pace

8:01 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:58:20

56% of race

Time at Steady Pace

59:28

28% of race

Time at Slower Pace

32:08

15% of race

Average Pace: 8:00 /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 mi10:54:2722:587:2422:58
7:24
#11240
10K
6.21 mi11:17:5046:217:2823:23
7:32
#11771
15K
9.32 mi11:41:121:09:437:2923:22
7:31
#11817
20K
12.43 mi12:05:221:33:537:3324:10
7:47
#12118
Half
13.11 mi12:10:341:39:057:335:12
7:37
#12147
25K
15.53 mi12:29:491:58:207:3719:15
7:56
#12342
30K
18.64 mi12:55:122:23:437:4325:23
8:10
#12351
20M
20.00 mi13:07:202:35:517:4812:08
8:56
#12661
21M
21.00 mi13:16:252:44:567:519:05
9:05
#12721
35K
21.75 mi13:22:432:51:147:526:18
8:25
#12831
23M
23.00 mi13:33:303:02:017:5510:47
8:37
#12867
24M
24.00 mi13:41:583:10:297:568:28
8:28
#12944
40K
24.85 mi13:49:283:17:597:587:30
8:46
#13019
25.2M
25.20 mi13:52:533:21:248:003:25
9:54
#13077
Finish
26.22 mi14:01:253:29:568:018:32
8:22
#13196
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi112408821882111943(Top 42%)9043(Top 56%)9043(Top 549%)
10K6.21 mi3.10 mi11771-5319057-2369057-23612328(Top 43%)9302(Top 58%)9302(Top 564%)
15K9.32 mi3.11 mi11817-469061-49061-411943(Top 42%)9043(Top 56%)9043(Top 549%)
20K12.43 mi3.11 mi12118-3019150-899150-8913081(Top 46%)9453(Top 59%)9453(Top 574%)
Half13.11 mi0.68 mi12147-299156-69156-612720(Top 45%)9343(Top 58%)9343(Top 567%)
25K15.53 mi2.42 mi12342-1959209-539209-5313407(Top 47%)9481(Top 59%)9481(Top 575%)
30K18.64 mi3.11 mi12351-99133+769133+7612590(Top 44%)8947(Top 56%)8947(Top 543%)
20M20.00 mi1.36 mi12661-3109237-1049237-10416384(Top 58%)10519(Top 65%)10519(Top 638%)
21M21.00 mi1.00 mi12721-609233+49233+413972(Top 49%)9313(Top 58%)9313(Top 565%)
35K21.75 mi0.75 mi12831-1109265-329265-3214948(Top 53%)9697(Top 60%)9697(Top 588%)
23M23.00 mi1.25 mi12867-369243+229243+2213987(Top 49%)9160(Top 57%)9160(Top 556%)
24M24.00 mi1.00 mi12944-779235+89235+814266(Top 50%)9265(Top 58%)9265(Top 562%)
40K24.85 mi0.85 mi13019-759240-59240-515000(Top 53%)9443(Top 59%)9443(Top 573%)
25.2M25.20 mi0.35 mi13077-589259-199259-1916538(Top 58%)10131(Top 63%)10131(Top 615%)
Finish26.22 mi1.02 mi13196-1199290-319290-3115366(Top 54%)9646(Top 60%)9646(Top 585%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21story building
+97ft-345ft

Overall

11943

Males

9043

M55-59

9043

5K→10K

3.1 - 6.2 mi

Top 43%
×5story building
+79ft-138ft

Overall

12328

Males

9302

M55-59

9302

10K→15K

6.2 - 9.3 mi

Top 42%
×3story building
+67ft-78ft

Overall

11943

Males

9043

M55-59

9043

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

13081

Males

9453

M55-59

9453

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

12720

Males

9343

M55-59

9343

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

13407

Males

9481

M55-59

9481

25K→30K

15.5 - 18.6 mi

Top 44%
×9story building
+181ft-148ft

Overall

12590

Males

8947

M55-59

8947

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

16384

Males

10519

M55-59

10519

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

13972

Males

9313

M55-59

9313

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

14948

Males

9697

M55-59

9697

35K→23M

21.8 - 23.0 mi

Top 49%
×5story building
+23ft-63ft

Overall

13987

Males

9160

M55-59

9160

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

14266

Males

9265

M55-59

9265

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

15000

Males

9443

M55-59

9443

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

16538

Males

10131

M55-59

10131

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

15366

Males

9646

M55-59

9646

Passing Analysis

Category:
Athletes Passed
1153
Passed By
3109
Net Change
-1956
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11240
5K → 10K81612-531#11240#11771
10K → 15K157203-46#11771#11817
15K → 20K115416-301#11817#12118
20K → Half2453-29#12118#12147
Half → 25K100295-195#12147#12342
25K → 30K239248-9#12342#12351
30K → 20M54364-310#12351#12661
20M → 21M95155-60#12661#12721
21M → 35K32142-110#12721#12831
35K → 23M101137-36#12831#12867
23M → 24M58135-77#12867#12944
24M → 40K51126-75#12944#13019
40K → 25.2M1573-58#13019#13077
25.2M → Finish31150-119#13077#13196
TOTALS11533109-1956
📊

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