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BOSTON MARATHON 2025

Nathan Pearson

Bib: 25679•M

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 45%
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:19
Rank: #12288
Start → 5K
7:30/mi
23:19 split
10K· 6.21 mi
44:40
Rank: #9367 (+2921)
5K → 10K
6:52/mi
21:21 split
15K· 9.32 mi
1:06:45
Rank: #8998 (+369)
10K → 15K
7:06/mi
22:05 split
20K· 12.43 mi
1:30:07
Rank: #9426 (-428)
15K → 20K
7:31/mi
23:22 split
Half· 13.11 mi
1:35:24
Rank: #9668 (-242)
20K → Half
7:45/mi
5:17 split
25K· 15.53 mi
1:54:59
Rank: #10471 (-803)
Half → 25K
8:05/mi
19:35 split
30K· 18.64 mi
2:21:37
Rank: #11405 (-934)
25K → 30K
8:34/mi
26:38 split
20M
2:33:33
Rank: #11707 (-302)
30K → 20M
8:47/mi
11:56 split
21M
2:43:06
Rank: #12025 (-318)
20M → 21M
9:33/mi
9:33 split
35K· 21.75 mi
2:49:24
Rank: #12141 (-116)
21M → 35K
8:25/mi
6:18 split
23M
3:00:48
Rank: #12447 (-306)
35K → 23M
9:06/mi
11:24 split
24M
3:09:48
Rank: #12695 (-248)
23M → 24M
9:00/mi
9:00 split
40K· 24.85 mi
3:17:21
Rank: #12818 (-123)
24M → 40K
8:50/mi
7:33 split
25.2M
3:20:39
Rank: #12858 (-40)
40K → 25.2M
9:34/mi
3:18 split
Finish· 26.22 mi
3:29:01
Rank: #12912 (-54)
25.2M → Finish
8:13/mi
8:22 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:24
Pace7:17 /mi
2nd Half
Distance13.11 mi
Time1:53:37
Pace8:40 /mi
📊Positive Split: 19.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:4223:197:3023:19
7:30
-
10K
6.21 mi12:03:0344:407:1121:21
6:52
-0:38
15K
9.32 mi12:25:081:06:457:1022:05
7:06
+0:14
20K
12.43 mi12:48:301:30:077:1523:22
7:31
+0:25
Half
13.11 mi12:53:471:35:247:175:17
7:45
+0:14
25K
15.53 mi13:13:221:54:597:2419:35
8:05
+0:20
30K
18.64 mi13:40:002:21:377:3626:38
8:34
+0:29
20M
20.00 mi13:51:562:33:337:4111:56
8:47
+0:13
21M
21.00 mi14:01:292:43:067:469:33
9:33
+0:46
35K
21.75 mi14:07:472:49:247:476:18
8:25
-1:08
23M
23.00 mi14:19:113:00:487:5211:24
9:06
+0:41
24M
24.00 mi14:28:113:09:487:559:00
9:00
-0:06
40K
24.85 mi14:35:443:17:217:567:33
8:50
-0:10
25.2M
25.20 mi14:39:023:20:397:583:18
9:34
+0:44
Finish
26.22 mi14:47:243:29:017:598:22
8:13
-1:21

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

6:52 /mi

Average Pace

7:59 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:24

46% of race

Time at Steady Pace

1:12:49

35% of race

Time at Slower Pace

40:48

20% of race

Average Pace: 7:58 /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 mi11:41:4223:197:3023:19
7:30
#12288
10K
6.21 mi12:03:0344:407:1121:21
6:52
#9367
15K
9.32 mi12:25:081:06:457:1022:05
7:06
#8998
20K
12.43 mi12:48:301:30:077:1523:22
7:31
#9426
Half
13.11 mi12:53:471:35:247:175:17
7:45
#9668
25K
15.53 mi13:13:221:54:597:2419:35
8:05
#10471
30K
18.64 mi13:40:002:21:377:3626:38
8:34
#11405
20M
20.00 mi13:51:562:33:337:4111:56
8:47
#11707
21M
21.00 mi14:01:292:43:067:469:33
9:33
#12025
35K
21.75 mi14:07:472:49:247:476:18
8:25
#12141
23M
23.00 mi14:19:113:00:487:5211:24
9:06
#12447
24M
24.00 mi14:28:113:09:487:559:00
9:00
#12695
40K
24.85 mi14:35:443:17:217:567:33
8:50
#12818
25.2M
25.20 mi14:39:023:20:397:583:18
9:34
#12858
Finish
26.22 mi14:47:243:29:017:598:22
8:13
#12912
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi12288930193018393(Top 30%)7178(Top 45%)7178(Top 127%)
10K6.21 mi3.10 mi9367+29217819+14827819+14827052(Top 25%)6318(Top 39%)6318(Top 112%)
15K9.32 mi3.11 mi8998+3697583+2367583+2368393(Top 30%)7178(Top 45%)7178(Top 127%)
20K12.43 mi3.11 mi9426-4287794-2117794-21110938(Top 39%)8473(Top 53%)8473(Top 150%)
Half13.11 mi0.68 mi9668-2427924-1307924-13013716(Top 48%)9765(Top 61%)9765(Top 173%)
25K15.53 mi2.42 mi10471-8038327-4038327-40314459(Top 51%)9952(Top 62%)9952(Top 176%)
30K18.64 mi3.11 mi11405-9348697-3708697-37015207(Top 54%)10143(Top 63%)10143(Top 180%)
20M20.00 mi1.36 mi11707-3028800-1038800-10315524(Top 55%)10160(Top 63%)10160(Top 180%)
21M21.00 mi1.00 mi12025-3188914-1148914-11416273(Top 57%)10365(Top 64%)10365(Top 184%)
35K21.75 mi0.75 mi12141-1168936-228936-2214947(Top 53%)9696(Top 60%)9696(Top 172%)
23M23.00 mi1.25 mi12447-3069040-1049040-10416817(Top 59%)10429(Top 65%)10429(Top 185%)
24M24.00 mi1.00 mi12695-2489140-1009140-10017337(Top 61%)10614(Top 66%)10614(Top 188%)
40K24.85 mi0.85 mi12818-1239155-159155-1515323(Top 54%)9571(Top 59%)9571(Top 170%)
25.2M25.20 mi0.35 mi12858-409159-49159-414882(Top 52%)9340(Top 58%)9340(Top 166%)
Finish26.22 mi1.02 mi12912-549168-99168-914309(Top 50%)9163(Top 57%)9163(Top 162%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21stories
+97ft-345ft

Overall

8393

Males

7178

M18-39

7178

5K→10K

3.1 - 6.2 mi

Top 25%
×5stories
+79ft-138ft

Overall

7052

Males

6318

M18-39

6318

10K→15K

6.2 - 9.3 mi

Top 30%
×3stories
+67ft-78ft

Overall

8393

Males

7178

M18-39

7178

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

10938

Males

8473

M18-39

8473

20K→Half

12.4 - 13.1 mi

Top 48%
×2stories
+19ft-37ft

Overall

13716

Males

9765

M18-39

9765

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

14459

Males

9952

M18-39

9952

25K→30K

15.5 - 18.6 mi

Top 54%
×9stories
+181ft-148ft

Overall

15207

Males

10143

M18-39

10143

30K→20M

18.6 - 20.0 mi

Top 55%
×5stories
+64ft-50ft

Overall

15524

Males

10160

M18-39

10160

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

16273

Males

10365

M18-39

10365

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

14947

Males

9696

M18-39

9696

35K→23M

21.8 - 23.0 mi

Top 59%
×5stories
+23ft-63ft

Overall

16817

Males

10429

M18-39

10429

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

17337

Males

10614

M18-39

10614

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15323

Males

9571

M18-39

9571

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

14882

Males

9340

M18-39

9340

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

14309

Males

9163

M18-39

9163

Passing Analysis

Category:
Athletes Passed
3836*
Passed By
4457
Net Change
-624
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12288
5K → 10K2923*2+2921#12288#9367
10K → 15K40334+369#9367#8998
15K → 20K75503-428#8998#9426
20K → Half2244-242#9426#9668
Half → 25K40841-803#9668#10471
25K → 30K58991-934#10471#11405
30K → 20M61363-302#11405#11707
20M → 21M36354-318#11707#12025
21M → 35K37153-116#12025#12141
35K → 23M46352-306#12141#12447
23M → 24M27275-248#12447#12695
24M → 40K47170-123#12695#12818
40K → 25.2M2464-40#12818#12858
25.2M → Finish57111-54#12858#12912
TOTALS3836*4457-624

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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