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BOSTON MARATHON 2025

David Yu

NY

Bib: 17905 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Top 50%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:44/mi
24:02
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:45/mi
48:06
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:51/mi
1:12:28
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:52/mi
1:36:54
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:45/mi
1:42:11
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:57/mi
2:01:27
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:04/mi
2:26:31
↑ 181↓ 1480.2%
138 ft elev
20M
8:34/mi
2:38:10
↑ 64↓ 500.2%
148 ft elev
21M
10:09/mi
2:48:19
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:49/mi
2:54:55
↑ 17↓ 861.7%
156 ft elev
23M
9:37/mi
3:06:57
↑ 23↓ 630.6%
116 ft elev
24M
9:25/mi
3:16:22
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:52/mi
3:24:48
↓ 200.3%
20 ft elev
25.2M
11:36/mi
3:28:48
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:14/mi
3:38:13
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:11
Pace7:48 /mi
2nd Half
Distance13.11 mi
Time1:56:02
Pace8:51 /mi
📊Positive Split: 13.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:1924:027:4424:02
7:44
-
10K
6.21 mi11:38:2348:067:4424:04
7:45
+0:01
15K
9.32 mi12:02:451:12:287:4624:22
7:51
+0:06
20K
12.43 mi12:27:111:36:547:4824:26
7:52
+0:01
Half
13.11 mi12:32:281:42:117:485:17
7:45
-0:07
25K
15.53 mi12:51:442:01:277:4919:16
7:57
+0:12
30K
18.64 mi13:16:482:26:317:5225:04
8:04
+0:07
20M
20.00 mi13:28:272:38:107:5411:39
8:34
+0:30
21M
21.00 mi13:38:362:48:198:0110:09
10:09
+1:35
35K
21.75 mi13:45:122:54:558:036:36
8:49
-1:20
23M
23.00 mi13:57:143:06:578:0812:02
9:37
+0:48
24M
24.00 mi14:06:393:16:228:119:25
9:25
-0:12
40K
24.85 mi14:15:053:24:488:148:26
9:52
+0:27
25.2M
25.20 mi14:19:053:28:488:174:00
11:36
+1:44
Finish
26.22 mi14:28:303:38:138:209:25
9:14
-2:22

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

7:44 /mi

Average Pace

8:20 /mi

Slowest Pace

11:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:27

56% of race

Time at Steady Pace

43:19

20% of race

Time at Slower Pace

53:27

24% of race

Average Pace: 8:19 /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 mi11:14:1924:027:4424:02
7:44
#14252
10K
6.21 mi11:38:2348:067:4424:04
7:45
#14248
15K
9.32 mi12:02:451:12:287:4624:22
7:51
#14411
20K
12.43 mi12:27:111:36:547:4824:26
7:52
#14225
Half
13.11 mi12:32:281:42:117:485:17
7:45
#14200
25K
15.53 mi12:51:442:01:277:4919:16
7:57
#14031
30K
18.64 mi13:16:482:26:317:5225:04
8:04
#13565
20M
20.00 mi13:28:272:38:107:5411:39
8:34
#13593
21M
21.00 mi13:38:362:48:198:0110:09
10:09
#13965
35K
21.75 mi13:45:122:54:558:036:36
8:49
#14125
23M
23.00 mi13:57:143:06:578:0812:02
9:37
#14510
24M
24.00 mi14:06:393:16:228:119:25
9:25
#14764
40K
24.85 mi14:15:053:24:488:148:26
9:52
#15038
25.2M
25.20 mi14:19:053:28:488:174:00
11:36
#15224
Finish
26.22 mi14:28:303:38:138:209:25
9:14
#15421
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi14252101421014214733(Top 52%)10251(Top 64%)10251(Top 622%)
10K6.21 mi3.10 mi14248+410121+2110121+2114291(Top 50%)10125(Top 63%)10125(Top 614%)
15K9.32 mi3.11 mi14411-16310161-4010161-4014733(Top 52%)10251(Top 64%)10251(Top 622%)
20K12.43 mi3.11 mi14225+18610048+11310048+11313789(Top 49%)9776(Top 61%)9776(Top 593%)
Half13.11 mi0.68 mi14200+2510035+1310035+1313754(Top 48%)9803(Top 61%)9803(Top 595%)
25K15.53 mi2.42 mi14031+1699926+1099926+10913479(Top 47%)9519(Top 59%)9519(Top 578%)
30K18.64 mi3.11 mi13565+4669669+2579669+25711869(Top 42%)8614(Top 53%)8614(Top 523%)
20M20.00 mi1.36 mi13593-289651+189651+1814239(Top 50%)9572(Top 59%)9572(Top 581%)
21M21.00 mi1.00 mi13965-3729781-1309781-13018838(Top 66%)11530(Top 72%)11530(Top 700%)
35K21.75 mi0.75 mi14125-1609829-489829-4817331(Top 61%)10735(Top 67%)10735(Top 651%)
23M23.00 mi1.25 mi14510-3859976-1479976-14719106(Top 67%)11489(Top 71%)11489(Top 697%)
24M24.00 mi1.00 mi14764-25410054-7810054-7819281(Top 68%)11535(Top 72%)11535(Top 700%)
40K24.85 mi0.85 mi15038-27410137-8310137-8319978(Top 70%)11776(Top 73%)11776(Top 715%)
25.2M25.20 mi0.35 mi15224-18610197-6010197-6022251(Top 78%)12901(Top 80%)12901(Top 783%)
Finish26.22 mi1.02 mi15421-19710262-6510262-6520105(Top 71%)11842(Top 74%)11842(Top 719%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

14733

Males

10251

M55-59

10251

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

14291

Males

10125

M55-59

10125

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

14733

Males

10251

M55-59

10251

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13789

Males

9776

M55-59

9776

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

13754

Males

9803

M55-59

9803

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

13479

Males

9519

M55-59

9519

25K→30K

15.5 - 18.6 mi

Top 42%
×9story building
+181ft-148ft

Overall

11869

Males

8614

M55-59

8614

30K→20M

18.6 - 20.0 mi

Top 50%
×5story building
+64ft-50ft

Overall

14239

Males

9572

M55-59

9572

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

18838

Males

11530

M55-59

11530

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

17331

Males

10735

M55-59

10735

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

19106

Males

11489

M55-59

11489

23M→24M

23.0 - 24.0 mi

Top 68%
×6story building
+12ft-82ft

Overall

19281

Males

11535

M55-59

11535

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

19978

Males

11776

M55-59

11776

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22251

Males

12901

M55-59

12901

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2story building
+22ft-21ft

Overall

20105

Males

11842

M55-59

11842

Passing Analysis

Category:
Athletes Passed
1807
Passed By
2976
Net Change
-1169
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14252
5K → 10K277273+4#14252#14248
10K → 15K152315-163#14248#14411
15K → 20K295109+186#14411#14225
20K → Half4116+25#14225#14200
Half → 25K25081+169#14200#14031
25K → 30K50640+466#14031#13565
30K → 20M118146-28#13565#13593
20M → 21M32404-372#13593#13965
21M → 35K33193-160#13965#14125
35K → 23M34419-385#14125#14510
23M → 24M24278-254#14510#14764
24M → 40K19293-274#14764#15038
40K → 25.2M9195-186#15038#15224
25.2M → Finish17214-197#15224#15421
TOTALS18072976-1169
📊

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