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BOSTON MARATHON 2025

Clay Thomas

Bib: 17947•M

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 33%
Gender (Male)
#0 / 16105
Top 46%
Masters (Masters Men)
#0 / 10463
Top 35%
Division (M55-59)
#0 / 1648
Top 17%
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
7:07/mi
22:07
↑ 97↓ 3451.5%
10K· 6.21 mi
7:21/mi
44:58
↑ 79↓ 1380.4%
15K· 9.32 mi
7:23/mi
1:07:55
↑ 67↓ 78
20K· 12.43 mi
7:31/mi
1:31:15
↑ 106↓ 860.1%
Half· 13.11 mi
7:20/mi
1:36:15
↑ 19↓ 370.5%
25K· 15.53 mi
7:30/mi
1:54:27
↑ 66↓ 880.2%
30K· 18.64 mi
7:45/mi
2:18:31
↑ 181↓ 1480.2%
20M
7:53/mi
2:29:14
↑ 64↓ 500.2%
21M
8:11/mi
2:37:25
↑ 106↓ 241.6%
35K· 21.75 mi
7:46/mi
2:43:14
↑ 17↓ 861.7%
23M
7:49/mi
2:53:01
↑ 23↓ 630.6%
24M
7:44/mi
3:00:45
↓ 821.3%
40K· 24.85 mi
7:41/mi
3:07:19
↓ 200.3%
25.2M
8:22/mi
3:10:12
↑ 13↓ 160.2%
Finish· 26.22 mi
7:32/mi
3:17:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:15
Pace7:21 /mi
2nd Half
Distance13.11 mi
Time1:41:38
Pace7:45 /mi
📊Positive Split: 5.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:12:1822:077:0722:07
7:07
-
10K
6.21 mi11:35:0944:587:1422:51
7:21
+0:14
15K
9.32 mi11:58:061:07:557:1722:57
7:23
+0:02
20K
12.43 mi12:21:261:31:157:2123:20
7:31
+0:08
Half
13.11 mi12:26:261:36:157:215:00
7:20
-0:11
25K
15.53 mi12:44:381:54:277:2218:12
7:30
+0:10
30K
18.64 mi13:08:422:18:317:2624:04
7:45
+0:15
20M
20.00 mi13:19:252:29:147:2810:43
7:53
+0:08
21M
21.00 mi13:27:362:37:257:308:11
8:11
+0:18
35K
21.75 mi13:33:252:43:147:305:49
7:46
-0:25
23M
23.00 mi13:43:122:53:017:319:47
7:49
+0:03
24M
24.00 mi13:50:563:00:457:327:44
7:44
-0:05
40K
24.85 mi13:57:303:07:197:326:34
7:41
-0:03
25.2M
25.20 mi14:00:233:10:127:332:53
8:22
+0:41
Finish
26.22 mi14:08:043:17:537:337:41
7:32
-0:50

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

7:07 /mi

Average Pace

7:33 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:56:06

89% of race

Time at Steady Pace

21:47

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:33 /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 mi11:12:1822:077:0722:07
7:07
#8801
10K
6.21 mi11:35:0944:587:1422:51
7:21
#9769
15K
9.32 mi11:58:061:07:557:1722:57
7:23
#10097
20K
12.43 mi12:21:261:31:157:2123:20
7:31
#10237
Half
13.11 mi12:26:261:36:157:215:00
7:20
#10228
25K
15.53 mi12:44:381:54:277:2218:12
7:30
#10159
30K
18.64 mi13:08:422:18:317:2624:04
7:45
#9968
20M
20.00 mi13:19:252:29:147:2810:43
7:53
#9881
21M
21.00 mi13:27:362:37:257:308:11
8:11
#9764
35K
21.75 mi13:33:252:43:147:305:49
7:46
#9789
23M
23.00 mi13:43:122:53:017:319:47
7:49
#9696
24M
24.00 mi13:50:563:00:457:327:44
7:44
#9642
40K
24.85 mi13:57:303:07:197:326:34
7:41
#9544
25.2M
25.20 mi14:00:233:10:127:332:53
8:22
#9500
Finish
26.22 mi14:08:043:17:537:337:41
7:32
#9476
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi88017490749010729(Top 38%)8463(Top 53%)8463(Top 514%)
10K6.21 mi3.10 mi9769-9688042-5528042-55210777(Top 38%)8547(Top 53%)8547(Top 519%)
15K9.32 mi3.11 mi10097-3288190-1488190-14810729(Top 38%)8463(Top 53%)8463(Top 514%)
20K12.43 mi3.11 mi10237-1408228-388228-3810835(Top 38%)8417(Top 52%)8417(Top 511%)
Half13.11 mi0.68 mi10228+98219+98219+910189(Top 36%)8105(Top 50%)8105(Top 492%)
25K15.53 mi2.42 mi10159+698146+738146+739991(Top 35%)7862(Top 49%)7862(Top 477%)
30K18.64 mi3.11 mi9968+1917999+1477999+1479515(Top 33%)7437(Top 46%)7437(Top 451%)
20M20.00 mi1.36 mi9881+877923+767923+769595(Top 34%)7308(Top 45%)7308(Top 443%)
21M21.00 mi1.00 mi9764+1177827+967827+968463(Top 30%)6523(Top 41%)6523(Top 396%)
35K21.75 mi0.75 mi9789-257811+167811+1610578(Top 37%)7647(Top 47%)7647(Top 464%)
23M23.00 mi1.25 mi9696+937720+917720+918671(Top 31%)6537(Top 41%)6537(Top 397%)
24M24.00 mi1.00 mi9642+547653+677653+679313(Top 33%)6807(Top 42%)6807(Top 413%)
40K24.85 mi0.85 mi9544+987568+857568+857948(Top 28%)5968(Top 37%)5968(Top 362%)
25.2M25.20 mi0.35 mi9500+447524+447524+447946(Top 28%)5887(Top 37%)5887(Top 357%)
Finish26.22 mi1.02 mi9476+247469+557469+559460(Top 33%)6688(Top 42%)6688(Top 406%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10729

Males

8463

M55-59

8463

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10777

Males

8547

M55-59

8547

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10729

Males

8463

M55-59

8463

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

10835

Males

8417

M55-59

8417

20K→Half

12.4 - 13.1 mi

Top 36%
×2story building
+19ft-37ft

Overall

10189

Males

8105

M55-59

8105

Half→25K

13.1 - 15.5 mi

Top 35%
×4story building
+66ft-88ft

Overall

9991

Males

7862

M55-59

7862

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

9515

Males

7437

M55-59

7437

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

9595

Males

7308

M55-59

7308

20M→21M

20.0 - 21.0 mi

Top 30%
×8story building
+106ft-24ft

Overall

8463

Males

6523

M55-59

6523

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

10578

Males

7647

M55-59

7647

35K→23M

21.8 - 23.0 mi

Top 31%
×5story building
+23ft-63ft

Overall

8671

Males

6537

M55-59

6537

23M→24M

23.0 - 24.0 mi

Top 33%
×6story building
+12ft-82ft

Overall

9313

Males

6807

M55-59

6807

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7948

Males

5968

M55-59

5968

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7946

Males

5887

M55-59

5887

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

9460

Males

6688

M55-59

6688

Passing Analysis

Category:
Athletes Passed
1672*
Passed By
2342
Net Change
-675
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8801
5K → 10K341001-968#8801#9769
10K → 15K74400-328#9769#10097
15K → 20K133272-140#10097#10237
20K → Half3728+9#10237#10228
Half → 25K185116+69#10228#10159
25K → 30K322*131+191#10159#9968
30K → 20M15365+87#9968#9881
20M → 21M15538+117#9881#9764
21M → 35K5984-25#9764#9789
35K → 23M14754+93#9789#9696
23M → 24M10854+54#9696#9642
24M → 40K12325+98#9642#9544
40K → 25.2M5612+44#9544#9500
25.2M → Finish8662+24#9500#9476
TOTALS1672*2342-675

* 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