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BOSTON MARATHON 2025

David Nicholson

Bib: 20693•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

Start
0:00:00
Race begins
5K· 3.11 mi
24:51
Rank: #16574
Start → 5K
24:51 | 8:00/mi
10K· 6.21 mi
49:47
Rank: #16607 (-33)
5K → 10K
24:56 | 8:02/mi
15K· 9.32 mi
1:14:31
Rank: #16288 (+319)
10K → 15K
24:44 | 7:58/mi
20K· 12.43 mi
1:40:46
Rank: #16739 (-451)
15K → 20K
26:15 | 8:27/mi
Half· 13.11 mi
1:46:26
Rank: #16802 (-63)
20K → Half
5:40 | 8:18/mi
25K· 15.53 mi
2:07:38
Rank: #17052 (-250)
Half → 25K
21:12 | 8:45/mi
30K· 18.64 mi
2:39:38
Rank: #18524 (-1472)
25K → 30K
32:00 | 10:18/mi
20M
2:55:08
Rank: #19325 (-801)
30K → 20M
15:30 | 11:24/mi
21M
3:06:46
Rank: #19671 (-346)
20M → 21M
11:38 | 11:38/mi
35K· 21.75 mi
3:14:17
Rank: #19790 (-119)
21M → 35K
7:31 | 10:03/mi
23M
3:26:06
Rank: #19705 (+85)
35K → 23M
11:49 | 9:26/mi
24M
3:34:55
Rank: #19569 (+136)
23M → 24M
8:49 | 8:49/mi
40K· 24.85 mi
3:42:36
Rank: #19449 (+120)
24M → 40K
7:41 | 8:59/mi
25.2M
3:45:44
Rank: #19326 (+123)
40K → 25.2M
3:08 | 9:05/mi
Finish· 26.22 mi
3:54:40
Rank: #19273 (+53)
25.2M → Finish
8:56 | 8:46/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:26
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time2:08:14
Pace9:47 /mi
📊Positive Split: 20.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:3624:518:0024:51
8:00
-
10K
6.21 mi11:43:3249:478:0124:56
8:02
+0:02
15K
9.32 mi12:08:161:14:318:0024:44
7:58
-0:04
20K
12.43 mi12:34:311:40:468:0726:15
8:27
+0:29
Half
13.11 mi12:40:111:46:268:075:40
8:18
-0:09
25K
15.53 mi13:01:232:07:388:1321:12
8:45
+0:27
30K
18.64 mi13:33:232:39:388:3432:00
10:18
+1:33
20M
20.00 mi13:48:532:55:088:4515:30
11:24
+1:06
21M
21.00 mi14:00:313:06:468:5411:38
11:38
+0:14
35K
21.75 mi14:08:023:14:178:567:31
10:03
-1:35
23M
23.00 mi14:19:513:26:068:5811:49
9:26
-0:37
24M
24.00 mi14:28:403:34:558:578:49
8:49
-0:37
40K
24.85 mi14:36:213:42:368:577:41
8:59
+0:10
25.2M
25.20 mi14:39:293:45:448:573:08
9:05
+0:06
Finish
26.22 mi14:48:253:54:408:578:56
8:46
-0:19

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

7:58 /mi

Average Pace

8:57 /mi

Slowest Pace

11:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:31

32% of race

Time at Steady Pace

1:21:41

35% of race

Time at Slower Pace

1:18:28

33% of race

Average Pace: 8:57 /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 mi11:18:3624:518:0024:51
8:00
#16574
10K
6.21 mi11:43:3249:478:0124:56
8:02
#16607
15K
9.32 mi12:08:161:14:318:0024:44
7:58
#16288
20K
12.43 mi12:34:311:40:468:0726:15
8:27
#16739
Half
13.11 mi12:40:111:46:268:075:40
8:18
#16802
25K
15.53 mi13:01:232:07:388:1321:12
8:45
#17052
30K
18.64 mi13:33:232:39:388:3432:00
10:18
#18524
20M
20.00 mi13:48:532:55:088:4515:30
11:24
#19325
21M
21.00 mi14:00:313:06:468:5411:38
11:38
#19671
35K
21.75 mi14:08:023:14:178:567:31
10:03
#19790
23M
23.00 mi14:19:513:26:068:5811:49
9:26
#19705
24M
24.00 mi14:28:403:34:558:578:49
8:49
#19569
40K
24.85 mi14:36:213:42:368:577:41
8:59
#19449
25.2M
25.20 mi14:39:293:45:448:573:08
9:05
#19326
Finish
26.22 mi14:48:253:54:408:578:56
8:46
#19273
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi16574110291102915738(Top 55%)10700(Top 66%)10700(Top 850%)
10K6.21 mi3.10 mi16607-3311060-3111060-3116667(Top 59%)11095(Top 69%)11095(Top 881%)
15K9.32 mi3.11 mi16288+31910936+12410936+12415738(Top 55%)10700(Top 66%)10700(Top 850%)
20K12.43 mi3.11 mi16739-45111109-17311109-17317868(Top 63%)11552(Top 72%)11552(Top 918%)
Half13.11 mi0.68 mi16802-6311145-3611145-3617949(Top 63%)11619(Top 72%)11619(Top 923%)
25K15.53 mi2.42 mi17052-25011204-5911204-5918633(Top 66%)11809(Top 73%)11809(Top 938%)
30K18.64 mi3.11 mi18524-147211799-59511799-59522444(Top 79%)13362(Top 83%)13362(Top 1061%)
20M20.00 mi1.36 mi19325-80112104-30512104-30524378(Top 86%)14156(Top 88%)14156(Top 1124%)
21M21.00 mi1.00 mi19671-34612229-12512229-12522879(Top 81%)13380(Top 83%)13380(Top 1063%)
35K21.75 mi0.75 mi19790-11912265-3612265-3622007(Top 77%)12909(Top 80%)12909(Top 1025%)
23M23.00 mi1.25 mi19705+8512196+6912196+6918399(Top 65%)11169(Top 69%)11169(Top 887%)
24M24.00 mi1.00 mi19569+13612110+8612110+8616404(Top 58%)10219(Top 63%)10219(Top 812%)
40K24.85 mi0.85 mi19449+12012046+6412046+6416217(Top 57%)10021(Top 62%)10021(Top 796%)
25.2M25.20 mi0.35 mi19326+12311980+6611980+6612282(Top 43%)8165(Top 51%)8165(Top 649%)
Finish26.22 mi1.02 mi19273+5311935+4511935+4517867(Top 63%)10815(Top 67%)10815(Top 859%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

15738

Males

10700

M60-64

10700

5K→10K

3.1 - 6.2 mi

Top 59%
×5stories
+79ft-138ft

Overall

16667

Males

11095

M60-64

11095

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

15738

Males

10700

M60-64

10700

15K→20K

9.3 - 12.4 mi

Top 63%
×5stories
+106ft-86ft

Overall

17868

Males

11552

M60-64

11552

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

17949

Males

11619

M60-64

11619

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

18633

Males

11809

M60-64

11809

25K→30K

15.5 - 18.6 mi

Top 79%
×9stories
+181ft-148ft

Overall

22444

Males

13362

M60-64

13362

30K→20M

18.6 - 20.0 mi

Top 86%
×5stories
+64ft-50ft

Overall

24378

Males

14156

M60-64

14156

20M→21M

20.0 - 21.0 mi

Top 81%
×8stories
+106ft-24ft

Overall

22879

Males

13380

M60-64

13380

21M→35K

21.0 - 21.8 mi

Top 77%
×7stories
+17ft-86ft

Overall

22007

Males

12909

M60-64

12909

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

18399

Males

11169

M60-64

11169

23M→24M

23.0 - 24.0 mi

Top 58%
×6stories
+12ft-82ft

Overall

16404

Males

10219

M60-64

10219

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

16217

Males

10021

M60-64

10021

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

12282

Males

8165

M60-64

8165

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

17867

Males

10815

M60-64

10815

Passing Analysis

Category:
Athletes Passed
1587
Passed By
4286
Net Change
-2699
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16574
5K → 10K289322-33#16574#16607
10K → 15K38768+319#16607#16288
15K → 20K87538-451#16288#16739
20K → Half2386-63#16739#16802
Half → 25K83333-250#16802#17052
25K → 30K291501-1472#17052#18524
30K → 20M14815-801#18524#19325
20M → 21M36382-346#19325#19671
21M → 35K17136-119#19671#19790
35K → 23M13853+85#19790#19705
23M → 24M14610+136#19705#19569
24M → 40K1277+120#19569#19449
40K → 25.2M1241+123#19449#19326
25.2M → Finish8734+53#19326#19273
TOTALS15874286-2699
📊

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