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BOSTON MARATHON 2025

Lap Tak Douglas Chan

Bib: 22481•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

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
9:11/mi
28:31
↑ 97↓ 3451.5%
10K· 6.21 mi
9:42/mi
58:40
↑ 79↓ 1380.4%
15K· 9.32 mi
10:01/mi
1:29:48
↑ 67↓ 78
20K· 12.43 mi
10:34/mi
2:02:38
↑ 106↓ 860.1%
Half· 13.11 mi
10:20/mi
2:09:41
↑ 19↓ 370.5%
25K· 15.53 mi
10:51/mi
2:35:59
↑ 66↓ 880.2%
30K· 18.64 mi
11:33/mi
3:11:53
↑ 181↓ 1480.2%
20M
11:32/mi
3:27:34
↑ 64↓ 500.2%
21M
12:05/mi
3:39:39
↑ 106↓ 241.6%
35K· 21.75 mi
10:47/mi
3:47:43
↑ 17↓ 861.7%
23M
11:24/mi
4:01:59
↑ 23↓ 630.6%
24M
11:15/mi
4:13:14
↓ 821.3%
40K· 24.85 mi
12:05/mi
4:23:34
↓ 200.3%
25.2M
13:06/mi
4:28:05
↑ 13↓ 160.2%
Finish· 26.22 mi
11:19/mi
4:39:37
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:41
Pace9:54 /mi
2nd Half
Distance13.11 mi
Time2:29:56
Pace11:26 /mi
📊Positive Split: 15.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:3428:319:1128:31
9:11
-
10K
6.21 mi11:53:4358:409:2630:09
9:42
+0:31
15K
9.32 mi12:24:511:29:489:3831:08
10:01
+0:19
20K
12.43 mi12:57:412:02:389:5232:50
10:34
+0:33
Half
13.11 mi13:04:442:09:419:547:03
10:20
-0:14
25K
15.53 mi13:31:022:35:5910:0226:18
10:51
+0:31
30K
18.64 mi14:06:563:11:5310:1835:54
11:33
+0:42
20M
20.00 mi14:22:373:27:3410:2315:41
11:32
-0:01
21M
21.00 mi14:34:423:39:3910:2812:05
12:05
+0:33
35K
21.75 mi14:42:463:47:4310:288:04
10:47
-1:18
23M
23.00 mi14:57:024:01:5910:3114:16
11:24
+0:37
24M
24.00 mi15:08:174:13:1410:3311:15
11:15
-0:09
40K
24.85 mi15:18:374:23:3410:3610:20
12:05
+0:50
25.2M
25.20 mi15:23:084:28:0510:384:31
13:06
+1:01
Finish
26.22 mi15:34:404:39:3710:4011:32
11:19
-1:47

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

9:11 /mi

Average Pace

10:40 /mi

Slowest Pace

13:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:41

46% of race

Time at Steady Pace

2:03:00

44% of race

Time at Slower Pace

26:56

10% of race

Average Pace: 10:40 /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 mi11:23:3428:319:1128:31
9:11
#23143
10K
6.21 mi11:53:4358:409:2630:09
9:42
#24012
15K
9.32 mi12:24:511:29:489:3831:08
10:01
#24400
20K
12.43 mi12:57:412:02:389:5232:50
10:34
#24686
Half
13.11 mi13:04:442:09:419:547:03
10:20
#24729
25K
15.53 mi13:31:022:35:5910:0226:18
10:51
#24804
30K
18.64 mi14:06:563:11:5310:1835:54
11:33
#24852
20M
20.00 mi14:22:373:27:3410:2315:41
11:32
#24846
21M
21.00 mi14:34:423:39:3910:2812:05
12:05
#24780
35K
21.75 mi14:42:463:47:4310:288:04
10:47
#24750
23M
23.00 mi14:57:024:01:5910:3114:16
11:24
#24724
24M
24.00 mi15:08:174:13:1410:3311:15
11:15
#24728
40K
24.85 mi15:18:374:23:3410:3610:20
12:05
#24749
25.2M
25.20 mi15:23:084:28:0510:384:31
13:06
#24760
Finish
26.22 mi15:34:404:39:3710:4011:32
11:19
#24820
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi23143138361383625031(Top 88%)14737(Top 92%)14737(Top 1171%)
10K6.21 mi3.10 mi24012-86914257-42114257-42124620(Top 87%)14526(Top 90%)14526(Top 1154%)
15K9.32 mi3.11 mi24400-38814435-17814435-17825031(Top 88%)14737(Top 92%)14737(Top 1171%)
20K12.43 mi3.11 mi24686-28614558-12314558-12325307(Top 89%)14811(Top 92%)14811(Top 1176%)
Half13.11 mi0.68 mi24729-4314582-2414582-2425507(Top 90%)14891(Top 92%)14891(Top 1183%)
25K15.53 mi2.42 mi24804-7514592-1014592-1024977(Top 88%)14639(Top 91%)14639(Top 1163%)
30K18.64 mi3.11 mi24852-4814595-314595-324930(Top 88%)14499(Top 90%)14499(Top 1152%)
20M20.00 mi1.36 mi24846+614570+2514570+2524612(Top 87%)14274(Top 89%)14274(Top 1134%)
21M21.00 mi1.00 mi24780+6614536+3414536+3423739(Top 84%)13794(Top 86%)13794(Top 1096%)
35K21.75 mi0.75 mi24750+3014515+2114515+2123775(Top 84%)13783(Top 86%)13783(Top 1095%)
23M23.00 mi1.25 mi24724+2614484+3114484+3124073(Top 85%)13878(Top 86%)13878(Top 1102%)
24M24.00 mi1.00 mi24728-414465+1914465+1924477(Top 86%)14051(Top 87%)14051(Top 1116%)
40K24.85 mi0.85 mi24749-2114462+314462+325057(Top 88%)14294(Top 89%)14294(Top 1135%)
25.2M25.20 mi0.35 mi24760-1114465-314465-325185(Top 89%)14338(Top 89%)14338(Top 1139%)
Finish26.22 mi1.02 mi24820-6014483-1814483-1825889(Top 91%)14726(Top 91%)14726(Top 1170%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21story building
+97ft-345ft

Overall

25031

Males

14737

M60-64

14737

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

24620

Males

14526

M60-64

14526

10K→15K

6.2 - 9.3 mi

Top 88%
×3story building
+67ft-78ft

Overall

25031

Males

14737

M60-64

14737

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

25307

Males

14811

M60-64

14811

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

25507

Males

14891

M60-64

14891

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

24977

Males

14639

M60-64

14639

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

24930

Males

14499

M60-64

14499

30K→20M

18.6 - 20.0 mi

Top 87%
×5story building
+64ft-50ft

Overall

24612

Males

14274

M60-64

14274

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

23739

Males

13794

M60-64

13794

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

23775

Males

13783

M60-64

13783

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

24073

Males

13878

M60-64

13878

23M→24M

23.0 - 24.0 mi

Top 86%
×6story building
+12ft-82ft

Overall

24477

Males

14051

M60-64

14051

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

25057

Males

14294

M60-64

14294

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

25185

Males

14338

M60-64

14338

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2story building
+22ft-21ft

Overall

25889

Males

14726

M60-64

14726

Passing Analysis

Category:
Athletes Passed
699
Passed By
2376
Net Change
-1677
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23143
5K → 10K38907-869#23143#24012
10K → 15K46434-388#24012#24400
15K → 20K62348-286#24400#24686
20K → Half1760-43#24686#24729
Half → 25K67142-75#24729#24804
25K → 30K115163-48#24804#24852
30K → 20M5751+6#24852#24846
20M → 21M8822+66#24846#24780
21M → 35K4212+30#24780#24750
35K → 23M6135+26#24750#24724
23M → 24M4347-4#24724#24728
24M → 40K2546-21#24728#24749
40K → 25.2M1627-11#24749#24760
25.2M → Finish2282-60#24760#24820
TOTALS6992376-1677
📊

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