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BOSTON MARATHON 2025

Thomas Smythe

Bib: 31327•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 34%
Gender (Male)
#0 / 16105
Top 47%
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
25:12
Rank: #17415
Start → 5K
25:12 | 8:07/mi
10K· 6.21 mi
48:09
Rank: #14313 (+3102)
5K → 10K
22:57 | 7:23/mi
15K· 9.32 mi
1:10:40
Rank: #12698 (+1615)
10K → 15K
22:31 | 7:15/mi
20K· 12.43 mi
1:33:29
Rank: #11822 (+876)
15K → 20K
22:49 | 7:21/mi
Half· 13.11 mi
1:38:24
Rank: #11693 (+129)
20K → Half
4:55 | 7:12/mi
25K· 15.53 mi
1:56:19
Rank: #11226 (+467)
Half → 25K
17:55 | 7:23/mi
30K· 18.64 mi
2:20:03
Rank: #10696 (+530)
25K → 30K
23:44 | 7:38/mi
20M
2:30:24
Rank: #10421 (+275)
30K → 20M
10:21 | 7:37/mi
21M
2:38:29
Rank: #10217 (+204)
20M → 21M
8:05 | 8:05/mi
35K· 21.75 mi
2:44:01
Rank: #10098 (+119)
21M → 35K
5:32 | 7:24/mi
23M
2:53:43
Rank: #9957 (+141)
35K → 23M
9:42 | 7:45/mi
24M
3:01:33
Rank: #9918 (+39)
23M → 24M
7:50 | 7:50/mi
40K· 24.85 mi
3:08:18
Rank: #9872 (+46)
24M → 40K
6:45 | 7:54/mi
25.2M
3:11:13
Rank: #9830 (+42)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
3:18:43
Rank: #9739 (+91)
25.2M → Finish
7:30 | 7:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:24
Pace7:30 /mi
2nd Half
Distance13.11 mi
Time1:40:19
Pace7:39 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:0825:128:0725:12
8:07
-
10K
6.21 mi12:09:0548:097:4522:57
7:23
-0:44
15K
9.32 mi12:31:361:10:407:3522:31
7:15
-0:08
20K
12.43 mi12:54:251:33:297:3122:49
7:21
+0:06
Half
13.11 mi12:59:201:38:247:304:55
7:12
-0:09
25K
15.53 mi13:17:151:56:197:2917:55
7:23
+0:11
30K
18.64 mi13:40:592:20:037:3123:44
7:38
+0:15
20M
20.00 mi13:51:202:30:247:3110:21
7:37
-0:01
21M
21.00 mi13:59:252:38:297:338:05
8:05
+0:28
35K
21.75 mi14:04:572:44:017:335:32
7:24
-0:41
23M
23.00 mi14:14:392:53:437:339:42
7:45
+0:21
24M
24.00 mi14:22:293:01:337:347:50
7:50
+0:05
40K
24.85 mi14:29:143:08:187:356:45
7:54
+0:04
25.2M
25.20 mi14:32:093:11:137:352:55
8:27
+0:33
Finish
26.22 mi14:39:393:18:437:357:30
7:22
-1:05

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

7:12 /mi

Average Pace

7:35 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:42:31

82% of race

Time at Steady Pace

36:12

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:35 /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 mi11:46:0825:128:0725:12
8:07
#17415
10K
6.21 mi12:09:0548:097:4522:57
7:23
#14313
15K
9.32 mi12:31:361:10:407:3522:31
7:15
#12698
20K
12.43 mi12:54:251:33:297:3122:49
7:21
#11822
Half
13.11 mi12:59:201:38:247:304:55
7:12
#11693
25K
15.53 mi13:17:151:56:197:2917:55
7:23
#11226
30K
18.64 mi13:40:592:20:037:3123:44
7:38
#10696
20M
20.00 mi13:51:202:30:247:3110:21
7:37
#10421
21M
21.00 mi13:59:252:38:297:338:05
8:05
#10217
35K
21.75 mi14:04:572:44:017:335:32
7:24
#10098
23M
23.00 mi14:14:392:53:437:339:42
7:45
#9957
24M
24.00 mi14:22:293:01:337:347:50
7:50
#9918
40K
24.85 mi14:29:143:08:187:356:45
7:54
#9872
25.2M
25.20 mi14:32:093:11:137:352:55
8:27
#9830
Finish
26.22 mi14:39:393:18:437:357:30
7:22
#9739
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1741511375113759526(Top 34%)7836(Top 49%)7836(Top 139%)
10K6.21 mi3.10 mi14313+310210142+123310142+123311057(Top 39%)8691(Top 54%)8691(Top 154%)
15K9.32 mi3.11 mi12698+16159456+6869456+6869526(Top 34%)7836(Top 49%)7836(Top 139%)
20K12.43 mi3.11 mi11822+8769014+4429014+4429387(Top 33%)7673(Top 48%)7673(Top 136%)
Half13.11 mi0.68 mi11693+1298947+678947+679119(Top 32%)7551(Top 47%)7551(Top 134%)
25K15.53 mi2.42 mi11226+4678690+2578690+2579061(Top 32%)7377(Top 46%)7377(Top 131%)
30K18.64 mi3.11 mi10696+5308362+3288362+3288744(Top 31%)7006(Top 44%)7006(Top 124%)
20M20.00 mi1.36 mi10421+2758185+1778185+1777805(Top 27%)6326(Top 39%)6326(Top 112%)
21M21.00 mi1.00 mi10217+2048040+1458040+1457850(Top 28%)6179(Top 38%)6179(Top 110%)
35K21.75 mi0.75 mi10098+1197953+877953+877894(Top 28%)6248(Top 39%)6248(Top 111%)
23M23.00 mi1.25 mi9957+1417841+1127841+1128205(Top 29%)6289(Top 39%)6289(Top 111%)
24M24.00 mi1.00 mi9918+397791+507791+5010027(Top 35%)7176(Top 45%)7176(Top 127%)
40K24.85 mi0.85 mi9872+467727+647727+649405(Top 33%)6745(Top 42%)6745(Top 120%)
25.2M25.20 mi0.35 mi9830+427688+397688+398525(Top 30%)6210(Top 39%)6210(Top 110%)
Finish26.22 mi1.02 mi9739+917604+847604+848189(Top 29%)6022(Top 37%)6022(Top 107%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21stories
+97ft-345ft

Overall

9526

Males

7836

M18-39

7836

5K→10K

3.1 - 6.2 mi

Top 39%
×5stories
+79ft-138ft

Overall

11057

Males

8691

M18-39

8691

10K→15K

6.2 - 9.3 mi

Top 34%
×3stories
+67ft-78ft

Overall

9526

Males

7836

M18-39

7836

15K→20K

9.3 - 12.4 mi

Top 33%
×5stories
+106ft-86ft

Overall

9387

Males

7673

M18-39

7673

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

9119

Males

7551

M18-39

7551

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

9061

Males

7377

M18-39

7377

25K→30K

15.5 - 18.6 mi

Top 31%
×9stories
+181ft-148ft

Overall

8744

Males

7006

M18-39

7006

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7805

Males

6326

M18-39

6326

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7850

Males

6179

M18-39

6179

21M→35K

21.0 - 21.8 mi

Top 28%
×7stories
+17ft-86ft

Overall

7894

Males

6248

M18-39

6248

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

8205

Males

6289

M18-39

6289

23M→24M

23.0 - 24.0 mi

Top 35%
×6stories
+12ft-82ft

Overall

10027

Males

7176

M18-39

7176

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9405

Males

6745

M18-39

6745

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8525

Males

6210

M18-39

6210

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

8189

Males

6022

M18-39

6022

Passing Analysis

Category:
Athletes Passed
7929*
Passed By
252
Net Change
+7676
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17415
5K → 10K31020+3102#17415#14313
10K → 15K16150+1615#14313#12698
15K → 20K8793+876#12698#11822
20K → Half1290+129#11822#11693
Half → 25K4725+467#11693#11226
25K → 30K55929+530#11226#10696
30K → 20M2827+275#10696#10421
20M → 21M22117+204#10421#10217
21M → 35K13112+119#10217#10098
35K → 23M174*33+141#10098#9957
23M → 24M9556+39#9957#9918
24M → 40K9952+46#9918#9872
40K → 25.2M519+42#9872#9830
25.2M → Finish12029+91#9830#9739
TOTALS7929*252+7676

* 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