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BOSTON MARATHON 2025

David Tomlinson

Bib: 13925•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 30%
Gender (Male)
#0 / 16105
Top 43%
Masters (Masters Men)
#0 / 10463
Top 31%
Division (M50-54)
#0 / 1996
Top 29%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:20/mi
22:46
↑ 97↓ 3451.5%
10K· 6.21 mi
7:16/mi
45:22
↑ 79↓ 1380.4%
15K· 9.32 mi
7:19/mi
1:08:06
↑ 67↓ 78
20K· 12.43 mi
7:35/mi
1:31:41
↑ 106↓ 860.1%
Half· 13.11 mi
7:21/mi
1:36:42
↑ 19↓ 370.5%
25K· 15.53 mi
7:30/mi
1:54:54
↑ 66↓ 880.2%
30K· 18.64 mi
7:37/mi
2:18:35
↑ 181↓ 1480.2%
20M
7:38/mi
2:28:57
↑ 64↓ 500.2%
21M
7:56/mi
2:36:53
↑ 106↓ 241.6%
35K· 21.75 mi
7:20/mi
2:42:22
↑ 17↓ 861.7%
23M
7:31/mi
2:51:47
↑ 23↓ 630.6%
24M
7:12/mi
2:58:59
↓ 821.3%
40K· 24.85 mi
7:19/mi
3:05:14
↓ 200.3%
25.2M
7:38/mi
3:07:52
↑ 13↓ 160.2%
Finish· 26.22 mi
6:50/mi
3:14:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:42
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:38:08
Pace7:29 /mi
📊Positive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:4822:467:2022:46
7:20
-
10K
6.21 mi11:14:2445:227:1822:36
7:16
-0:04
15K
9.32 mi11:37:081:08:067:1822:44
7:19
+0:03
20K
12.43 mi12:00:431:31:417:2323:35
7:35
+0:16
Half
13.11 mi12:05:441:36:427:235:01
7:21
-0:14
25K
15.53 mi12:23:561:54:547:2418:12
7:30
+0:09
30K
18.64 mi12:47:372:18:357:2623:41
7:37
+0:07
20M
20.00 mi12:57:592:28:577:2710:22
7:38
+0:01
21M
21.00 mi13:05:552:36:537:287:56
7:56
+0:18
35K
21.75 mi13:11:242:42:227:285:29
7:20
-0:36
23M
23.00 mi13:20:492:51:477:289:25
7:31
+0:11
24M
24.00 mi13:28:012:58:597:277:12
7:12
-0:19
40K
24.85 mi13:34:163:05:147:276:15
7:19
+0:07
25.2M
25.20 mi13:36:543:07:527:272:38
7:38
+0:19
Finish
26.22 mi13:43:523:14:507:266:58
6:50
-0:48

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

6:50 /mi

Average Pace

7:26 /mi

Slowest Pace

7:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:38

65% of race

Time at Steady Pace

1:08:12

35% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:26 /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 mi10:51:4822:467:2022:46
7:20
#10623
10K
6.21 mi11:14:2445:227:1822:36
7:16
#10338
15K
9.32 mi11:37:081:08:067:1822:44
7:19
#10256
20K
12.43 mi12:00:431:31:417:2323:35
7:35
#10557
Half
13.11 mi12:05:441:36:427:235:01
7:21
#10532
25K
15.53 mi12:23:561:54:547:2418:12
7:30
#10417
30K
18.64 mi12:47:372:18:357:2623:41
7:37
#9998
20M
20.00 mi12:57:592:28:577:2710:22
7:38
#9770
21M
21.00 mi13:05:552:36:537:287:56
7:56
#9557
35K
21.75 mi13:11:242:42:227:285:29
7:20
#9453
23M
23.00 mi13:20:492:51:477:289:25
7:31
#9220
24M
24.00 mi13:28:012:58:597:277:12
7:12
#9003
40K
24.85 mi13:34:163:05:147:276:15
7:19
#8827
25.2M
25.20 mi13:36:543:07:527:272:38
7:38
#8705
Finish
26.22 mi13:43:523:14:507:266:58
6:50
#8492
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi106238495849510110(Top 36%)8142(Top 51%)8142(Top 408%)
10K6.21 mi3.10 mi10338+2858338+1578338+15710123(Top 36%)8212(Top 51%)8212(Top 411%)
15K9.32 mi3.11 mi10256+828274+648274+6410110(Top 36%)8142(Top 51%)8142(Top 408%)
20K12.43 mi3.11 mi10557-3018397-1238397-12311493(Top 40%)8723(Top 54%)8723(Top 437%)
Half13.11 mi0.68 mi10532+258389+88389+810398(Top 37%)8211(Top 51%)8211(Top 411%)
25K15.53 mi2.42 mi10417+1158296+938296+939986(Top 35%)7857(Top 49%)7857(Top 394%)
30K18.64 mi3.11 mi9998+4198018+2788018+2788618(Top 30%)6943(Top 43%)6943(Top 348%)
20M20.00 mi1.36 mi9770+2287853+1657853+1657885(Top 28%)6372(Top 40%)6372(Top 319%)
21M21.00 mi1.00 mi9557+2137708+1457708+1456987(Top 25%)5677(Top 35%)5677(Top 284%)
35K21.75 mi0.75 mi9453+1047636+727636+727406(Top 26%)5940(Top 37%)5940(Top 298%)
23M23.00 mi1.25 mi9220+2337456+1807456+1806742(Top 24%)5444(Top 34%)5444(Top 273%)
24M24.00 mi1.00 mi9003+2177304+1527304+1525835(Top 21%)4823(Top 30%)4823(Top 242%)
40K24.85 mi0.85 mi8827+1767162+1427162+1425709(Top 20%)4683(Top 29%)4683(Top 235%)
25.2M25.20 mi0.35 mi8705+1227076+867076+864090(Top 14%)3506(Top 22%)3506(Top 176%)
Finish26.22 mi1.02 mi8492+2136932+1446932+1444726(Top 17%)3950(Top 25%)3950(Top 198%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21story building
+97ft-345ft

Overall

10110

Males

8142

M50-54

8142

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

10123

Males

8212

M50-54

8212

10K→15K

6.2 - 9.3 mi

Top 36%
×3story building
+67ft-78ft

Overall

10110

Males

8142

M50-54

8142

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

11493

Males

8723

M50-54

8723

20K→Half

12.4 - 13.1 mi

Top 37%
×2story building
+19ft-37ft

Overall

10398

Males

8211

M50-54

8211

Half→25K

13.1 - 15.5 mi

Top 35%
×4story building
+66ft-88ft

Overall

9986

Males

7857

M50-54

7857

25K→30K

15.5 - 18.6 mi

Top 30%
×9story building
+181ft-148ft

Overall

8618

Males

6943

M50-54

6943

30K→20M

18.6 - 20.0 mi

Top 28%
×5story building
+64ft-50ft

Overall

7885

Males

6372

M50-54

6372

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6987

Males

5677

M50-54

5677

21M→35K

21.0 - 21.8 mi

Top 26%
×7story building
+17ft-86ft

Overall

7406

Males

5940

M50-54

5940

35K→23M

21.8 - 23.0 mi

Top 24%
×5story building
+23ft-63ft

Overall

6742

Males

5444

M50-54

5444

23M→24M

23.0 - 24.0 mi

Top 21%
×6story building
+12ft-82ft

Overall

5835

Males

4823

M50-54

4823

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5709

Males

4683

M50-54

4683

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

4090

Males

3506

M50-54

3506

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2story building
+22ft-21ft

Overall

4726

Males

3950

M50-54

3950

Passing Analysis

Category:
Athletes Passed
3018*
Passed By
885
Net Change
+2131
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10623
5K → 10K419134+285#10623#10338
10K → 15K207125+82#10338#10256
15K → 20K95395-301#10256#10557
20K → Half4823+25#10557#10532
Half → 25K21095+115#10532#10417
25K → 30K458*39+419#10417#9998
30K → 20M24819+228#9998#9770
20M → 21M2218+213#9770#9557
21M → 35K11814+104#9557#9453
35K → 23M24613+233#9453#9220
23M → 24M2203+217#9220#9003
24M → 40K1848+176#9003#8827
40K → 25.2M1253+122#8827#8705
25.2M → Finish2196+213#8705#8492
TOTALS3018*885+2131

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

📊

Passing Visuals

Category:
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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