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BOSTON MARATHON 2025

Reece Clark

Bib: 30686•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
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
27:51
Rank: #22260
Start → 5K
27:51 | 8:58/mi
10K· 6.21 mi
54:35
Rank: #21366 (+894)
5K → 10K
26:44 | 8:36/mi
15K· 9.32 mi
1:20:53
Rank: #20624 (+742)
10K → 15K
26:18 | 8:28/mi
20K· 12.43 mi
1:46:32
Rank: #19724 (+900)
15K → 20K
25:39 | 8:15/mi
Half· 13.11 mi
1:51:55
Rank: #19493 (+231)
20K → Half
5:23 | 7:53/mi
25K· 15.53 mi
2:12:18
Rank: #19008 (+485)
Half → 25K
20:23 | 8:24/mi
30K· 18.64 mi
2:39:42
Rank: #18547 (+461)
25K → 30K
27:24 | 8:49/mi
20M
2:53:08
Rank: #18768 (-221)
30K → 20M
13:26 | 9:53/mi
21M
3:03:57
Rank: #18958 (-190)
20M → 21M
10:49 | 10:49/mi
35K· 21.75 mi
3:10:59
Rank: #19003 (-45)
21M → 35K
7:02 | 9:24/mi
23M
3:23:21
Rank: #19108 (-105)
35K → 23M
12:22 | 9:53/mi
24M
3:33:17
Rank: #19230 (-122)
23M → 24M
9:56 | 9:56/mi
40K· 24.85 mi
3:41:31
Rank: #19227 (+3)
24M → 40K
8:14 | 9:38/mi
25.2M
3:45:15
Rank: #19229 (-2)
40K → 25.2M
3:44 | 10:50/mi
Finish· 26.22 mi
3:53:42
Rank: #19076 (+153)
25.2M → Finish
8:27 | 8:18/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:55
Pace8:32 /mi
2nd Half
Distance13.11 mi
Time2:01:47
Pace9:17 /mi
📊Positive Split: 8.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:4127:518:5827:51
8:58
-
10K
6.21 mi12:18:2554:358:4726:44
8:36
-0:22
15K
9.32 mi12:44:431:20:538:4126:18
8:28
-0:08
20K
12.43 mi13:10:221:46:328:3425:39
8:15
-0:13
Half
13.11 mi13:15:451:51:558:325:23
7:53
-0:22
25K
15.53 mi13:36:082:12:188:3120:23
8:24
+0:31
30K
18.64 mi14:03:322:39:428:3427:24
8:49
+0:25
20M
20.00 mi14:16:582:53:088:3913:26
9:53
+1:04
21M
21.00 mi14:27:473:03:578:4610:49
10:49
+0:56
35K
21.75 mi14:34:493:10:598:477:02
9:24
-1:25
23M
23.00 mi14:47:113:23:218:5012:22
9:53
+0:29
24M
24.00 mi14:57:073:33:178:539:56
9:56
+0:03
40K
24.85 mi15:05:213:41:318:558:14
9:38
-0:18
25.2M
25.20 mi15:09:053:45:158:563:44
10:50
+1:12
Finish
26.22 mi15:17:323:53:428:558:27
8:18
-2:32

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

7:53 /mi

Average Pace

8:55 /mi

Slowest Pace

10:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:10

37% of race

Time at Steady Pace

1:29:01

38% of race

Time at Slower Pace

58:31

25% of race

Average Pace: 8:55 /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 mi11:51:4127:518:5827:51
8:58
#22260
10K
6.21 mi12:18:2554:358:4726:44
8:36
#21366
15K
9.32 mi12:44:431:20:538:4126:18
8:28
#20624
20K
12.43 mi13:10:221:46:328:3425:39
8:15
#19724
Half
13.11 mi13:15:451:51:558:325:23
7:53
#19493
25K
15.53 mi13:36:082:12:188:3120:23
8:24
#19008
30K
18.64 mi14:03:322:39:428:3427:24
8:49
#18547
20M
20.00 mi14:16:582:53:088:3913:26
9:53
#18768
21M
21.00 mi14:27:473:03:578:4610:49
10:49
#18958
35K
21.75 mi14:34:493:10:598:477:02
9:24
#19003
23M
23.00 mi14:47:113:23:218:5012:22
9:53
#19108
24M
24.00 mi14:57:073:33:178:539:56
9:56
#19230
40K
24.85 mi15:05:213:41:318:558:14
9:38
#19227
25.2M
25.20 mi15:09:053:45:158:563:44
10:50
#19229
Finish
26.22 mi15:17:323:53:428:558:27
8:18
#19076
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22260134261342619114(Top 67%)12093(Top 75%)12093(Top 214%)
10K6.21 mi3.10 mi21366+89413051+37513051+37520371(Top 72%)12638(Top 78%)12638(Top 224%)
15K9.32 mi3.11 mi20624+74212744+30712744+30719114(Top 67%)12093(Top 75%)12093(Top 214%)
20K12.43 mi3.11 mi19724+90012351+39312351+39316661(Top 59%)11036(Top 69%)11036(Top 196%)
Half13.11 mi0.68 mi19493+23112250+10112250+10115004(Top 53%)10366(Top 64%)10366(Top 184%)
25K15.53 mi2.42 mi19008+48512033+21712033+21716615(Top 58%)10933(Top 68%)10933(Top 194%)
30K18.64 mi3.11 mi18547+46111810+22311810+22316709(Top 59%)10802(Top 67%)10802(Top 191%)
20M20.00 mi1.36 mi18768-22111875-6511875-6520554(Top 72%)12384(Top 77%)12384(Top 219%)
21M21.00 mi1.00 mi18958-19011920-4511920-4520881(Top 74%)12435(Top 77%)12435(Top 220%)
35K21.75 mi0.75 mi19003-4511926-611926-619930(Top 70%)11935(Top 74%)11935(Top 212%)
23M23.00 mi1.25 mi19108-10511946-2011946-2020056(Top 71%)11924(Top 74%)11924(Top 211%)
24M24.00 mi1.00 mi19230-12211973-2711973-2721150(Top 74%)12413(Top 77%)12413(Top 220%)
40K24.85 mi0.85 mi19227+311947+2611947+2619190(Top 68%)11418(Top 71%)11418(Top 202%)
25.2M25.20 mi0.35 mi19229-211935+1211935+1220083(Top 71%)11825(Top 73%)11825(Top 210%)
Finish26.22 mi1.02 mi19076+15311851+8411851+8414856(Top 52%)9426(Top 59%)9426(Top 167%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21stories
+97ft-345ft

Overall

19114

Males

12093

M18-39

12093

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

20371

Males

12638

M18-39

12638

10K→15K

6.2 - 9.3 mi

Top 67%
×3stories
+67ft-78ft

Overall

19114

Males

12093

M18-39

12093

15K→20K

9.3 - 12.4 mi

Top 59%
×5stories
+106ft-86ft

Overall

16661

Males

11036

M18-39

11036

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

15004

Males

10366

M18-39

10366

Half→25K

13.1 - 15.5 mi

Top 58%
×4stories
+66ft-88ft

Overall

16615

Males

10933

M18-39

10933

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

16709

Males

10802

M18-39

10802

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

20554

Males

12384

M18-39

12384

20M→21M

20.0 - 21.0 mi

Top 74%
×8stories
+106ft-24ft

Overall

20881

Males

12435

M18-39

12435

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

19930

Males

11935

M18-39

11935

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

20056

Males

11924

M18-39

11924

23M→24M

23.0 - 24.0 mi

Top 74%
×6stories
+12ft-82ft

Overall

21150

Males

12413

M18-39

12413

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19190

Males

11418

M18-39

11418

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

20083

Males

11825

M18-39

11825

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2stories
+22ft-21ft

Overall

14856

Males

9426

M18-39

9426

Passing Analysis

Category:
Athletes Passed
4329
Passed By
1145
Net Change
+3184
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22260
5K → 10K93238+894#22260#21366
10K → 15K76119+742#21366#20624
15K → 20K9033+900#20624#19724
20K → Half2310+231#19724#19493
Half → 25K49510+485#19493#19008
25K → 30K50544+461#19008#18547
30K → 20M50271-221#18547#18768
20M → 21M56246-190#18768#18958
21M → 35K4590-45#18958#19003
35K → 23M58163-105#19003#19108
23M → 24M38160-122#19108#19230
24M → 40K6562+3#19230#19227
40K → 25.2M3234-2#19227#19229
25.2M → Finish1585+153#19229#19076
TOTALS43291145+3184
📊

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