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BOSTON MARATHON 2025

Keith Harrison

Bib: 9148•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 20%
Gender (Male)
#0 / 16105
Top 31%
Masters (Masters Men)
#0 / 10463
Top 17%
Division (M60-64)
#0 / 1259
Top 2%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:30
Rank: #4592
Start → 5K
20:30 | 6:36/mi
10K· 6.21 mi
41:17
Rank: #4872 (-280)
5K → 10K
20:47 | 6:41/mi
15K· 9.32 mi
1:02:13
Rank: #5008 (-136)
10K → 15K
20:56 | 6:44/mi
20K· 12.43 mi
1:23:29
Rank: #5147 (-139)
15K → 20K
21:16 | 6:51/mi
Half· 13.11 mi
1:28:08
Rank: #5200 (-53)
20K → Half
4:39 | 6:49/mi
25K· 15.53 mi
1:44:53
Rank: #5289 (-89)
Half → 25K
16:45 | 6:55/mi
30K· 18.64 mi
2:07:21
Rank: #5436 (-147)
25K → 30K
22:28 | 7:14/mi
20M
2:17:19
Rank: #5504 (-68)
30K → 20M
9:58 | 7:20/mi
21M
2:25:13
Rank: #5540 (-36)
20M → 21M
7:54 | 7:54/mi
35K· 21.75 mi
2:30:33
Rank: #5551 (-11)
21M → 35K
5:20 | 7:08/mi
23M
2:39:45
Rank: #5475 (+76)
35K → 23M
9:12 | 7:21/mi
24M
2:47:14
Rank: #5506 (-31)
23M → 24M
7:29 | 7:29/mi
40K· 24.85 mi
2:53:49
Rank: #5535 (-29)
24M → 40K
6:35 | 7:42/mi
25.2M
2:56:47
Rank: #5550 (-15)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:04:30
Rank: #5636 (-86)
25.2M → Finish
7:43 | 7:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:08
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:36:22
Pace7:21 /mi
📊Positive Split: 9.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:45:4120:306:3620:30
6:36
-
10K
6.21 mi11:06:2841:176:3920:47
6:41
+0:05
15K
9.32 mi11:27:241:02:136:4120:56
6:44
+0:03
20K
12.43 mi11:48:401:23:296:4321:16
6:51
+0:07
Half
13.11 mi11:53:191:28:086:434:39
6:49
-0:02
25K
15.53 mi12:10:041:44:536:4516:45
6:55
+0:06
30K
18.64 mi12:32:322:07:216:5022:28
7:14
+0:19
20M
20.00 mi12:42:302:17:196:529:58
7:20
+0:06
21M
21.00 mi12:50:242:25:136:557:54
7:54
+0:34
35K
21.75 mi12:55:442:30:336:555:20
7:08
-0:46
23M
23.00 mi13:04:562:39:456:579:12
7:21
+0:13
24M
24.00 mi13:12:252:47:146:587:29
7:29
+0:08
40K
24.85 mi13:19:002:53:497:006:35
7:42
+0:13
25.2M
25.20 mi13:21:582:56:477:012:58
8:36
+0:54
Finish
26.22 mi13:29:413:04:307:037:43
7:34
-1:02

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

6:36 /mi

Average Pace

7:03 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:53

57% of race

Time at Steady Pace

54:27

30% of race

Time at Slower Pace

25:10

14% of race

Average Pace: 7:02 /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 mi10:45:4120:306:3620:30
6:36
#4592
10K
6.21 mi11:06:2841:176:3920:47
6:41
#4872
15K
9.32 mi11:27:241:02:136:4120:56
6:44
#5008
20K
12.43 mi11:48:401:23:296:4321:16
6:51
#5147
Half
13.11 mi11:53:191:28:086:434:39
6:49
#5200
25K
15.53 mi12:10:041:44:536:4516:45
6:55
#5289
30K
18.64 mi12:32:322:07:216:5022:28
7:14
#5436
20M
20.00 mi12:42:302:17:196:529:58
7:20
#5504
21M
21.00 mi12:50:242:25:136:557:54
7:54
#5540
35K
21.75 mi12:55:442:30:336:555:20
7:08
#5551
23M
23.00 mi13:04:562:39:456:579:12
7:21
#5475
24M
24.00 mi13:12:252:47:146:587:29
7:29
#5506
40K
24.85 mi13:19:002:53:497:006:35
7:42
#5535
25.2M
25.20 mi13:21:582:56:477:012:58
8:36
#5550
Finish
26.22 mi13:29:413:04:307:037:43
7:34
#5636
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi4592431543155463(Top 19%)5022(Top 31%)5022(Top 399%)
10K6.21 mi3.10 mi4872-2804553-2384553-2385261(Top 19%)4882(Top 30%)4882(Top 388%)
15K9.32 mi3.11 mi5008-1364668-1154668-1155463(Top 19%)5022(Top 31%)5022(Top 399%)
20K12.43 mi3.11 mi5147-1394773-1054773-1055746(Top 20%)5236(Top 33%)5236(Top 416%)
Half13.11 mi0.68 mi5200-534823-504823-506292(Top 22%)5677(Top 35%)5677(Top 451%)
25K15.53 mi2.42 mi5289-894881-584881-585732(Top 20%)5185(Top 32%)5185(Top 412%)
30K18.64 mi3.11 mi5436-1474986-1054986-1056077(Top 21%)5364(Top 33%)5364(Top 426%)
20M20.00 mi1.36 mi5504-685033-475033-476000(Top 21%)5202(Top 32%)5202(Top 413%)
21M21.00 mi1.00 mi5540-365054-215054-216774(Top 24%)5545(Top 34%)5545(Top 440%)
35K21.75 mi0.75 mi5551-11505450546151(Top 22%)5173(Top 32%)5173(Top 411%)
23M23.00 mi1.25 mi5475+764976+784976+785731(Top 20%)4818(Top 30%)4818(Top 383%)
24M24.00 mi1.00 mi5506-314984-84984-87545(Top 27%)5834(Top 36%)5834(Top 463%)
40K24.85 mi0.85 mi5535-294995-114995-118050(Top 28%)6012(Top 37%)6012(Top 478%)
25.2M25.20 mi0.35 mi5550-155001-65001-69332(Top 33%)6584(Top 41%)6584(Top 523%)
Finish26.22 mi1.02 mi5636-865049-485049-489689(Top 34%)6800(Top 42%)6800(Top 540%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5463

Males

5022

M60-64

5022

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5261

Males

4882

M60-64

4882

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5463

Males

5022

M60-64

5022

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5746

Males

5236

M60-64

5236

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

6292

Males

5677

M60-64

5677

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5732

Males

5185

M60-64

5185

25K→30K

15.5 - 18.6 mi

Top 21%
×9stories
+181ft-148ft

Overall

6077

Males

5364

M60-64

5364

30K→20M

18.6 - 20.0 mi

Top 21%
×5stories
+64ft-50ft

Overall

6000

Males

5202

M60-64

5202

20M→21M

20.0 - 21.0 mi

Top 24%
×8stories
+106ft-24ft

Overall

6774

Males

5545

M60-64

5545

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

6151

Males

5173

M60-64

5173

35K→23M

21.8 - 23.0 mi

Top 20%
×5stories
+23ft-63ft

Overall

5731

Males

4818

M60-64

4818

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7545

Males

5834

M60-64

5834

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

8050

Males

6012

M60-64

6012

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

9332

Males

6584

M60-64

6584

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

9689

Males

6800

M60-64

6800

Passing Analysis

Category:
Athletes Passed
850
Passed By
1894
Net Change
-1044
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4592
5K → 10K76356-280#4592#4872
10K → 15K72208-136#4872#5008
15K → 20K79218-139#5008#5147
20K → Half1568-53#5147#5200
Half → 25K82171-89#5200#5289
25K → 30K134281-147#5289#5436
30K → 20M57125-68#5436#5504
20M → 21M5086-36#5504#5540
21M → 35K3950-11#5540#5551
35K → 23M12044+76#5551#5475
23M → 24M4273-31#5475#5506
24M → 40K4069-29#5506#5535
40K → 25.2M2136-15#5535#5550
25.2M → Finish23109-86#5550#5636
TOTALS8501894-1044
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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