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BOSTON MARATHON 2025

Danny Chang

CA

Bib: 11422 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
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
8:48/mi
27:19
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:32/mi
53:49
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:36/mi
1:20:33
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:52/mi
1:48:06
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:12/mi
1:53:42
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:44/mi
2:14:52
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:07/mi
2:43:13
↑ 181↓ 1480.2%
138 ft elev
20M
9:10/mi
2:55:41
↑ 64↓ 500.2%
148 ft elev
21M
9:51/mi
3:05:32
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:51/mi
3:12:09
↑ 17↓ 861.7%
156 ft elev
23M
9:21/mi
3:23:51
↑ 23↓ 630.6%
116 ft elev
24M
8:37/mi
3:32:28
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:11/mi
3:40:19
↓ 200.3%
20 ft elev
25.2M
10:21/mi
3:43:53
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:03/mi
3:53:06
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:53:428:40 /mi⚡ faster
2nd Half
1:59:249:06 /mi+5.0%
Positive split — 5.0% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:0327:198:4827:19
8:48
-
10K
6.21 mi11:51:3353:498:4026:30
8:32
-0:16
15K
9.32 mi12:18:171:20:338:3926:44
8:36
+0:04
20K
12.43 mi12:45:501:48:068:4227:33
8:52
+0:16
Half
13.11 mi12:51:261:53:428:405:36
8:12
-0:40
25K
15.53 mi13:12:362:14:528:4121:10
8:44
+0:32
30K
18.64 mi13:40:572:43:138:4528:21
9:07
+0:23
20M
20.00 mi13:53:252:55:418:4712:28
9:10
+0:03
21M
21.00 mi14:03:163:05:328:509:51
9:51
+0:41
35K
21.75 mi14:09:533:12:098:506:37
8:51
-1:00
23M
23.00 mi14:21:353:23:518:5211:42
9:21
+0:30
24M
24.00 mi14:30:123:32:288:518:37
8:37
-0:44
40K
24.85 mi14:38:033:40:198:527:51
9:11
+0:34
25.2M
25.20 mi14:41:373:43:538:533:34
10:21
+1:10
Finish
26.22 mi14:50:503:53:068:549:13
9:03
-1:18

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

8:12 /mi

Average Pace

8:54 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

58:50

25% of race

Time at Steady Pace

2:08:50

55% of race

Time at Slower Pace

45:26

19% of race

Average Pace: 8:53 /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 mi11:25:0327:198:4827:19
8:48
#21471
10K
6.21 mi11:51:3353:498:4026:30
8:32
#20702
15K
9.32 mi12:18:171:20:338:3926:44
8:36
#20423
20K
12.43 mi12:45:501:48:068:4227:33
8:52
#20405
Half
13.11 mi12:51:261:53:428:405:36
8:12
#20259
25K
15.53 mi13:12:362:14:528:4121:10
8:44
#19951
30K
18.64 mi13:40:572:43:138:4528:21
9:07
#19619
20M
20.00 mi13:53:252:55:418:4712:28
9:10
#19480
21M
21.00 mi14:03:163:05:328:509:51
9:51
#19359
35K
21.75 mi14:09:533:12:098:506:37
8:51
#19292
23M
23.00 mi14:21:353:23:518:5211:42
9:21
#19206
24M
24.00 mi14:30:123:32:288:518:37
8:37
#19054
40K
24.85 mi14:38:033:40:198:527:51
9:11
#18959
25.2M
25.20 mi14:41:373:43:538:533:34
10:21
#18949
Finish
26.22 mi14:50:503:53:068:549:13
9:03
#18961
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi214711306113061199401247312473
10K6.21 mi3.10 mi20702+76912754+30712754+307199551245912459
15K9.32 mi3.11 mi20423+27912651+10312651+103199401247312473
20K12.43 mi3.11 mi20405+1812643+812643+8203031259512595
Half13.11 mi0.68 mi20259+14612571+7212571+72173091133611336
25K15.53 mi2.42 mi19951+30812439+13212439+132185661177711777
30K18.64 mi3.11 mi19619+33212253+18612253+186182831150011500
20M20.00 mi1.36 mi19480+13912173+8012173+80176491110511105
21M21.00 mi1.00 mi19359+12112097+7612097+76176821100711007
35K21.75 mi0.75 mi19292+6712057+4012057+40174661081610816
23M23.00 mi1.25 mi19206+8611984+7311984+73179891096710967
24M24.00 mi1.00 mi19054+15211903+8111903+811525597089708
40K24.85 mi0.85 mi18959+9511830+7311830+73172471048710487
25.2M25.20 mi0.35 mi18949+1011814+1611814+16184191102711027
Finish26.22 mi1.02 mi18961-1211801+1311801+13192491145711457

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

19940

Males

12473

M60-64

12473

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

19955

Males

12459

M60-64

12459

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

19940

Males

12473

M60-64

12473

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

20303

Males

12595

M60-64

12595

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

17309

Males

11336

M60-64

11336

Half→25K

13.1 - 15.5 mi

Top 65%
×4story building
+66ft-88ft

Overall

18566

Males

11777

M60-64

11777

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

18283

Males

11500

M60-64

11500

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

17649

Males

11105

M60-64

11105

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

17682

Males

11007

M60-64

11007

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

17466

Males

10816

M60-64

10816

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

17989

Males

10967

M60-64

10967

23M→24M

23.0 - 24.0 mi

Top 54%
×6story building
+12ft-82ft

Overall

15255

Males

9708

M60-64

9708

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

17247

Males

10487

M60-64

10487

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18419

Males

11027

M60-64

11027

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2story building
+22ft-21ft

Overall

19249

Males

11457

M60-64

11457

Passing Analysis

Category:
Athletes Passed
3179
Passed By
669
Net Change
+2510
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21471
5K → 10K84273+769#21471#20702
10K → 15K35980+279#20702#20423
15K → 20K188170+18#20423#20405
20K → Half1471+146#20405#20259
Half → 25K33830+308#20259#19951
25K → 30K40573+332#19951#19619
30K → 20M17536+139#19619#19480
20M → 21M15534+121#19480#19359
21M → 35K7912+67#19359#19292
35K → 23M13347+86#19292#19206
23M → 24M1575+152#19206#19054
24M → 40K11722+95#19054#18959
40K → 25.2M3424+10#18959#18949
25.2M → Finish5062-12#18949#18961
TOTALS3179669+2510

Passing Charts

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