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BOSTON MARATHON 2025

Mark Thomas

Bib: 14600•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 35%
Gender (Male)
#0 / 16105
Top 48%
Masters (Masters Men)
#0 / 10463
Top 36%
Division (M50-54)
#0 / 1996
Top 37%
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
7:15/mi
22:33
↑ 97↓ 3451.5%
10K· 6.21 mi
7:16/mi
45:09
↑ 79↓ 1380.4%
15K· 9.32 mi
7:20/mi
1:07:57
↑ 67↓ 78
20K· 12.43 mi
7:32/mi
1:31:22
↑ 106↓ 860.1%
Half· 13.11 mi
7:21/mi
1:36:23
↑ 19↓ 370.5%
25K· 15.53 mi
7:28/mi
1:54:30
↑ 66↓ 880.2%
30K· 18.64 mi
7:56/mi
2:19:09
↑ 181↓ 1480.2%
20M
7:53/mi
2:29:52
↑ 64↓ 500.2%
21M
8:32/mi
2:38:24
↑ 106↓ 241.6%
35K· 21.75 mi
7:40/mi
2:44:08
↑ 17↓ 861.7%
23M
7:53/mi
2:54:00
↑ 23↓ 630.6%
24M
7:39/mi
3:01:39
↓ 821.3%
40K· 24.85 mi
7:44/mi
3:08:16
↓ 200.3%
25.2M
8:30/mi
3:11:12
↑ 13↓ 160.2%
Finish· 26.22 mi
7:39/mi
3:19:00
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:23
Pace7:21 /mi
2nd Half
Distance13.11 mi
Time1:42:37
Pace7:50 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:4622:337:1522:33
7:15
-
10K
6.21 mi11:16:2245:097:1622:36
7:16
+0:01
15K
9.32 mi11:39:101:07:577:1722:48
7:20
+0:04
20K
12.43 mi12:02:351:31:227:2123:25
7:32
+0:12
Half
13.11 mi12:07:361:36:237:215:01
7:21
-0:11
25K
15.53 mi12:25:431:54:307:2218:07
7:28
+0:07
30K
18.64 mi12:50:222:19:097:2824:39
7:56
+0:28
20M
20.00 mi13:01:052:29:527:3010:43
7:53
-0:03
21M
21.00 mi13:09:372:38:247:338:32
8:32
+0:39
35K
21.75 mi13:15:212:44:087:335:44
7:40
-0:52
23M
23.00 mi13:25:132:54:007:349:52
7:53
+0:13
24M
24.00 mi13:32:523:01:397:347:39
7:39
-0:14
40K
24.85 mi13:39:293:08:167:346:37
7:44
+0:05
25.2M
25.20 mi13:42:253:11:127:352:56
8:30
+0:46
Finish
26.22 mi13:50:133:19:007:367:48
7:39
-0:51

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

7:15 /mi

Average Pace

7:36 /mi

Slowest Pace

8:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:32

94% of race

Time at Steady Pace

11:28

6% 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 mi10:53:4622:337:1522:33
7:15
#9948
10K
6.21 mi11:16:2245:097:1622:36
7:16
#10037
15K
9.32 mi11:39:101:07:577:1722:48
7:20
#10127
20K
12.43 mi12:02:351:31:227:2123:25
7:32
#10323
Half
13.11 mi12:07:361:36:237:215:01
7:21
#10311
25K
15.53 mi12:25:431:54:307:2218:07
7:28
#10190
30K
18.64 mi12:50:222:19:097:2824:39
7:56
#10265
20M
20.00 mi13:01:052:29:527:3010:43
7:53
#10185
21M
21.00 mi13:09:372:38:247:338:32
8:32
#10184
35K
21.75 mi13:15:212:44:087:335:44
7:40
#10153
23M
23.00 mi13:25:132:54:007:349:52
7:53
#10051
24M
24.00 mi13:32:523:01:397:347:39
7:39
#9966
40K
24.85 mi13:39:293:08:167:346:37
7:44
#9864
25.2M
25.20 mi13:42:253:11:127:352:56
8:30
#9824
Finish
26.22 mi13:50:133:19:007:367:48
7:39
#9821
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi99488138813810299(Top 36%)8245(Top 51%)8245(Top 413%)
10K6.21 mi3.10 mi10037-898186-488186-4810127(Top 36%)8216(Top 51%)8216(Top 412%)
15K9.32 mi3.11 mi10127-908208-228208-2210299(Top 36%)8245(Top 51%)8245(Top 413%)
20K12.43 mi3.11 mi10323-1968274-668274-6611060(Top 39%)8526(Top 53%)8526(Top 427%)
Half13.11 mi0.68 mi10311+128259+158259+1510417(Top 37%)8230(Top 51%)8230(Top 412%)
25K15.53 mi2.42 mi10190+1218163+968163+969719(Top 34%)7713(Top 48%)7713(Top 386%)
30K18.64 mi3.11 mi10265-758155+88155+810884(Top 38%)8130(Top 50%)8130(Top 407%)
20M20.00 mi1.36 mi10185+808081+748081+749600(Top 34%)7313(Top 45%)7313(Top 366%)
21M21.00 mi1.00 mi10184+18024+578024+5710665(Top 38%)7697(Top 48%)7697(Top 386%)
35K21.75 mi0.75 mi10153+317986+387986+389767(Top 34%)7245(Top 45%)7245(Top 363%)
23M23.00 mi1.25 mi10051+1027891+957891+959133(Top 32%)6791(Top 42%)6791(Top 340%)
24M24.00 mi1.00 mi9966+857814+777814+778762(Top 31%)6529(Top 41%)6529(Top 327%)
40K24.85 mi0.85 mi9864+1027723+917723+918340(Top 29%)6178(Top 38%)6178(Top 310%)
25.2M25.20 mi0.35 mi9824+407686+377686+378789(Top 31%)6348(Top 39%)6348(Top 318%)
Finish26.22 mi1.02 mi9821+37655+317655+3110320(Top 36%)7150(Top 44%)7150(Top 358%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21story building
+97ft-345ft

Overall

10299

Males

8245

M50-54

8245

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

10127

Males

8216

M50-54

8216

10K→15K

6.2 - 9.3 mi

Top 36%
×3story building
+67ft-78ft

Overall

10299

Males

8245

M50-54

8245

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

11060

Males

8526

M50-54

8526

20K→Half

12.4 - 13.1 mi

Top 37%
×2story building
+19ft-37ft

Overall

10417

Males

8230

M50-54

8230

Half→25K

13.1 - 15.5 mi

Top 34%
×4story building
+66ft-88ft

Overall

9719

Males

7713

M50-54

7713

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10884

Males

8130

M50-54

8130

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

9600

Males

7313

M50-54

7313

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10665

Males

7697

M50-54

7697

21M→35K

21.0 - 21.8 mi

Top 34%
×7story building
+17ft-86ft

Overall

9767

Males

7245

M50-54

7245

35K→23M

21.8 - 23.0 mi

Top 32%
×5story building
+23ft-63ft

Overall

9133

Males

6791

M50-54

6791

23M→24M

23.0 - 24.0 mi

Top 31%
×6story building
+12ft-82ft

Overall

8762

Males

6529

M50-54

6529

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

8340

Males

6178

M50-54

6178

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8789

Males

6348

M50-54

6348

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

10320

Males

7150

M50-54

7150

Passing Analysis

Category:
Athletes Passed
1780
Passed By
1648
Net Change
+127
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9948
5K → 10K192279-89#9948#10037
10K → 15K141231-90#10037#10127
15K → 20K119314-196#10127#10323
20K → Half4331+12#10323#10311
Half → 25K20786+121#10311#10190
25K → 30K213287-75#10190#10265
30K → 20M15575+80#10265#10185
20M → 21M108107+1#10185#10184
21M → 35K7847+31#10184#10153
35K → 23M14745+102#10153#10051
23M → 24M12439+85#10051#9966
24M → 40K13027+102#9966#9864
40K → 25.2M488+40#9864#9824
25.2M → Finish7572+3#9824#9821
TOTALS17801648+127
📊

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