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BOSTON MARATHON 2025

Nicholas Thomas

Bib: 896•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 14%
Gender (Male)
#0 / 16105
Top 23%
Division (M18-39)
#0 / 5642
Top 49%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:53
Rank: #3118
Start → 5K
19:53 | 6:24/mi
10K· 6.21 mi
40:11
Rank: #3531 (-413)
5K → 10K
20:18 | 6:32/mi
15K· 9.32 mi
1:00:18
Rank: #3460 (+71)
10K → 15K
20:07 | 6:28/mi
20K· 12.43 mi
1:20:32
Rank: #3361 (+99)
15K → 20K
20:14 | 6:31/mi
Half· 13.11 mi
1:24:55
Rank: #3351 (+10)
20K → Half
4:23 | 6:25/mi
25K· 15.53 mi
1:41:22
Rank: #3549 (-198)
Half → 25K
16:27 | 6:47/mi
30K· 18.64 mi
2:02:31
Rank: #3475 (+74)
25K → 30K
21:09 | 6:48/mi
20M
2:11:58
Rank: #3469 (+6)
30K → 20M
9:27 | 6:57/mi
21M
2:19:16
Rank: #3442 (+27)
20M → 21M
7:18 | 7:18/mi
35K· 21.75 mi
2:24:22
Rank: #3440 (+2)
21M → 35K
5:06 | 6:49/mi
23M
2:33:21
Rank: #3456 (-16)
35K → 23M
8:59 | 7:10/mi
24M
2:40:17
Rank: #3461 (-5)
23M → 24M
6:56 | 6:56/mi
40K· 24.85 mi
2:46:29
Rank: #3492 (-31)
24M → 40K
6:12 | 7:15/mi
25.2M
2:49:25
Rank: #3579 (-87)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
2:58:13
Rank: #4097 (-518)
25.2M → Finish
8:48 | 8:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:55
Pace6:29 /mi
2nd Half
Distance13.11 mi
Time1:33:18
Pace7:07 /mi
📊Positive Split: 9.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:5919:536:2419:53
6:24
-
10K
6.21 mi10:41:1740:116:2820:18
6:32
+0:08
15K
9.32 mi11:01:241:00:186:2820:07
6:28
-0:04
20K
12.43 mi11:21:381:20:326:2920:14
6:31
+0:03
Half
13.11 mi11:26:011:24:556:294:23
6:25
-0:06
25K
15.53 mi11:42:281:41:226:3216:27
6:47
+0:22
30K
18.64 mi12:03:372:02:316:3421:09
6:48
+0:01
20M
20.00 mi12:13:042:11:586:369:27
6:57
+0:09
21M
21.00 mi12:20:222:19:166:387:18
7:18
+0:21
35K
21.75 mi12:25:282:24:226:385:06
6:49
-0:29
23M
23.00 mi12:34:272:33:216:408:59
7:10
+0:21
24M
24.00 mi12:41:232:40:176:416:56
6:56
-0:14
40K
24.85 mi12:47:352:46:296:426:12
7:15
+0:19
25.2M
25.20 mi12:50:312:49:256:432:56
8:30
+1:15
Finish
26.22 mi12:59:192:58:136:488:48
8:38
+0:08

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

6:24 /mi

Average Pace

6:48 /mi

Slowest Pace

8:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

44:23

25% of race

Time at Steady Pace

1:39:37

56% of race

Time at Slower Pace

34:13

19% of race

Average Pace: 6:48 /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 mi10:20:5919:536:2419:53
6:24
#3118
10K
6.21 mi10:41:1740:116:2820:18
6:32
#3531
15K
9.32 mi11:01:241:00:186:2820:07
6:28
#3460
20K
12.43 mi11:21:381:20:326:2920:14
6:31
#3361
Half
13.11 mi11:26:011:24:556:294:23
6:25
#3351
25K
15.53 mi11:42:281:41:226:3216:27
6:47
#3549
30K
18.64 mi12:03:372:02:316:3421:09
6:48
#3475
20M
20.00 mi12:13:042:11:586:369:27
6:57
#3469
21M
21.00 mi12:20:222:19:166:387:18
7:18
#3442
35K
21.75 mi12:25:282:24:226:385:06
6:49
#3440
23M
23.00 mi12:34:272:33:216:408:59
7:10
#3456
24M
24.00 mi12:41:232:40:176:416:56
6:56
#3461
40K
24.85 mi12:47:352:46:296:426:12
7:15
#3492
25.2M
25.20 mi12:50:312:49:256:432:56
8:30
#3579
Finish
26.22 mi12:59:192:58:136:488:48
8:38
#4097
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3118296229623405(Top 12%)3229(Top 20%)3229(Top 57%)
10K6.21 mi3.10 mi3531-4133350-3883350-3883970(Top 14%)3737(Top 23%)3737(Top 66%)
15K9.32 mi3.11 mi3460+713285+653285+653405(Top 12%)3229(Top 20%)3229(Top 57%)
20K12.43 mi3.11 mi3361+993190+953190+953197(Top 11%)3032(Top 19%)3032(Top 54%)
Half13.11 mi0.68 mi3351+103182+83182+83212(Top 11%)3053(Top 19%)3053(Top 54%)
25K15.53 mi2.42 mi3549-1983358-1763358-1764736(Top 17%)4359(Top 27%)4359(Top 77%)
30K18.64 mi3.11 mi3475+743288+703288+703486(Top 12%)3241(Top 20%)3241(Top 57%)
20M20.00 mi1.36 mi3469+63278+103278+103817(Top 13%)3510(Top 22%)3510(Top 62%)
21M21.00 mi1.00 mi3442+273253+253253+253617(Top 13%)3306(Top 21%)3306(Top 59%)
35K21.75 mi0.75 mi3440+23249+43249+44178(Top 15%)3731(Top 23%)3731(Top 66%)
23M23.00 mi1.25 mi3456-163254-53254-54699(Top 17%)4096(Top 25%)4096(Top 73%)
24M24.00 mi1.00 mi3461-53251+33251+34237(Top 15%)3718(Top 23%)3718(Top 66%)
40K24.85 mi0.85 mi3492-313271-203271-205305(Top 19%)4406(Top 27%)4406(Top 78%)
25.2M25.20 mi0.35 mi3579-873341-703341-708712(Top 31%)6271(Top 39%)6271(Top 111%)
Finish26.22 mi1.02 mi4097-5183781-4403781-44017023(Top 60%)10388(Top 65%)10388(Top 184%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3405

Males

3229

M18-39

3229

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3970

Males

3737

M18-39

3737

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3405

Males

3229

M18-39

3229

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

3197

Males

3032

M18-39

3032

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

3212

Males

3053

M18-39

3053

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4736

Males

4359

M18-39

4359

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3486

Males

3241

M18-39

3241

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3817

Males

3510

M18-39

3510

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3617

Males

3306

M18-39

3306

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4178

Males

3731

M18-39

3731

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4699

Males

4096

M18-39

4096

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4237

Males

3718

M18-39

3718

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5305

Males

4406

M18-39

4406

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8712

Males

6271

M18-39

6271

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

17023

Males

10388

M18-39

10388

Passing Analysis

Category:
Athletes Passed
821
Passed By
1800
Net Change
-979
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3118
5K → 10K24437-413#3118#3531
10K → 15K13564+71#3531#3460
15K → 20K14849+99#3460#3361
20K → Half2515+10#3361#3351
Half → 25K31229-198#3351#3549
25K → 30K14268+74#3549#3475
30K → 20M6256+6#3475#3469
20M → 21M6942+27#3469#3442
21M → 35K3432+2#3442#3440
35K → 23M5874-16#3440#3456
23M → 24M5055-5#3456#3461
24M → 40K3162-31#3461#3492
40K → 25.2M895-87#3492#3579
25.2M → Finish4522-518#3579#4097
TOTALS8211800-979
📊

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