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BOSTON MARATHON 2025

Joshua Clough

Bib: 1555•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 13%
Gender (Male)
#0 / 16105
Top 21%
Division (M18-39)
#0 / 5642
Top 45%
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
6:50/mi
21:13
↑ 97↓ 3451.5%
10K· 6.21 mi
6:38/mi
41:50
↑ 79↓ 1380.4%
15K· 9.32 mi
6:34/mi
1:02:15
↑ 67↓ 78
20K· 12.43 mi
6:32/mi
1:22:34
↑ 106↓ 860.1%
Half· 13.11 mi
6:25/mi
1:26:57
↑ 19↓ 370.5%
25K· 15.53 mi
6:33/mi
1:42:49
↑ 66↓ 880.2%
30K· 18.64 mi
6:31/mi
2:03:04
↑ 181↓ 1480.2%
20M
6:32/mi
2:11:57
↑ 64↓ 500.2%
21M
6:57/mi
2:18:54
↑ 106↓ 241.6%
35K· 21.75 mi
6:24/mi
2:23:41
↑ 17↓ 861.7%
23M
6:51/mi
2:32:15
↑ 23↓ 630.6%
24M
7:01/mi
2:39:16
↓ 821.3%
40K· 24.85 mi
7:24/mi
2:45:36
↓ 200.3%
25.2M
8:51/mi
2:48:39
↑ 13↓ 160.2%
Finish· 26.22 mi
7:37/mi
2:56:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:57
Pace6:38 /mi
2nd Half
Distance13.11 mi
Time1:29:28
Pace6:49 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5321:136:5021:13
6:50
-
10K
6.21 mi10:42:3041:506:4420:37
6:38
-0:12
15K
9.32 mi11:02:551:02:156:4120:25
6:34
-0:04
20K
12.43 mi11:23:141:22:346:3920:19
6:32
-0:02
Half
13.11 mi11:27:371:26:576:384:23
6:25
-0:07
25K
15.53 mi11:43:291:42:496:3715:52
6:33
+0:08
30K
18.64 mi12:03:442:03:046:3620:15
6:31
-0:02
20M
20.00 mi12:12:372:11:576:368:53
6:32
+0:01
21M
21.00 mi12:19:342:18:546:376:57
6:57
+0:25
35K
21.75 mi12:24:212:23:416:364:47
6:24
-0:33
23M
23.00 mi12:32:552:32:156:378:34
6:51
+0:27
24M
24.00 mi12:39:562:39:166:387:01
7:01
+0:10
40K
24.85 mi12:46:162:45:366:406:20
7:24
+0:23
25.2M
25.20 mi12:49:192:48:396:423:03
8:51
+1:27
Finish
26.22 mi12:57:052:56:256:447:46
7:37
-1:14

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

6:24 /mi

Average Pace

6:44 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:25:18

82% of race

Time at Slower Pace

31:07

18% of race

Average Pace: 6:44 /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 mi10:21:5321:136:5021:13
6:50
#6550
10K
6.21 mi10:42:3041:506:4420:37
6:38
#5685
15K
9.32 mi11:02:551:02:156:4120:25
6:34
#5053
20K
12.43 mi11:23:141:22:346:3920:19
6:32
#4503
Half
13.11 mi11:27:371:26:576:384:23
6:25
#4432
25K
15.53 mi11:43:291:42:496:3715:52
6:33
#4145
30K
18.64 mi12:03:442:03:046:3620:15
6:31
#3662
20M
20.00 mi12:12:372:11:576:368:53
6:32
#3460
21M
21.00 mi12:19:342:18:546:376:57
6:57
#3333
35K
21.75 mi12:24:212:23:416:364:47
6:24
#3236
23M
23.00 mi12:32:552:32:156:378:34
6:51
#3163
24M
24.00 mi12:39:562:39:166:387:01
7:01
#3197
40K
24.85 mi12:46:162:45:366:406:20
7:24
#3280
25.2M
25.20 mi12:49:192:48:396:423:03
8:51
#3385
Finish
26.22 mi12:57:052:56:256:447:46
7:37
#3594
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6550595759574040(Top 14%)3805(Top 24%)3805(Top 67%)
10K6.21 mi3.10 mi5685+8655252+7055252+7054754(Top 17%)4451(Top 28%)4451(Top 79%)
15K9.32 mi3.11 mi5053+6324706+5464706+5464040(Top 14%)3805(Top 24%)3805(Top 67%)
20K12.43 mi3.11 mi4503+5504219+4874219+4873362(Top 12%)3187(Top 20%)3187(Top 56%)
Half13.11 mi0.68 mi4432+714159+604159+603269(Top 12%)3110(Top 19%)3110(Top 55%)
25K15.53 mi2.42 mi4145+2873894+2653894+2653137(Top 11%)2971(Top 18%)2971(Top 53%)
30K18.64 mi3.11 mi3662+4833457+4373457+4372071(Top 7%)1970(Top 12%)1970(Top 35%)
20M20.00 mi1.36 mi3460+2023271+1863271+1861783(Top 6%)1689(Top 10%)1689(Top 30%)
21M21.00 mi1.00 mi3333+1273151+1203151+1202088(Top 7%)1963(Top 12%)1963(Top 35%)
35K21.75 mi0.75 mi3236+973056+953056+952035(Top 7%)1909(Top 12%)1909(Top 34%)
23M23.00 mi1.25 mi3163+732987+692987+692929(Top 10%)2684(Top 17%)2684(Top 48%)
24M24.00 mi1.00 mi3197-343017-303017-304723(Top 17%)4063(Top 25%)4063(Top 72%)
40K24.85 mi0.85 mi3280-833088-713088-716229(Top 22%)4989(Top 31%)4989(Top 88%)
25.2M25.20 mi0.35 mi3385-1053176-883176-8810802(Top 38%)7355(Top 46%)7355(Top 130%)
Finish26.22 mi1.02 mi3594-2093350-1743350-17410069(Top 35%)7006(Top 44%)7006(Top 124%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21story building
+97ft-345ft

Overall

4040

Males

3805

M18-39

3805

5K→10K

3.1 - 6.2 mi

Top 17%
×5story building
+79ft-138ft

Overall

4754

Males

4451

M18-39

4451

10K→15K

6.2 - 9.3 mi

Top 14%
×3story building
+67ft-78ft

Overall

4040

Males

3805

M18-39

3805

15K→20K

9.3 - 12.4 mi

Top 12%
×5story building
+106ft-86ft

Overall

3362

Males

3187

M18-39

3187

20K→Half

12.4 - 13.1 mi

Top 12%
×2story building
+19ft-37ft

Overall

3269

Males

3110

M18-39

3110

Half→25K

13.1 - 15.5 mi

Top 11%
×4story building
+66ft-88ft

Overall

3137

Males

2971

M18-39

2971

25K→30K

15.5 - 18.6 mi

Top 7%
×9story building
+181ft-148ft

Overall

2071

Males

1970

M18-39

1970

30K→20M

18.6 - 20.0 mi

Top 6%
×5story building
+64ft-50ft

Overall

1783

Males

1689

M18-39

1689

20M→21M

20.0 - 21.0 mi

Top 7%
×8story building
+106ft-24ft

Overall

2088

Males

1963

M18-39

1963

21M→35K

21.0 - 21.8 mi

Top 7%
×7story building
+17ft-86ft

Overall

2035

Males

1909

M18-39

1909

35K→23M

21.8 - 23.0 mi

Top 10%
×5story building
+23ft-63ft

Overall

2929

Males

2684

M18-39

2684

23M→24M

23.0 - 24.0 mi

Top 17%
×6story building
+12ft-82ft

Overall

4723

Males

4063

M18-39

4063

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

6229

Males

4989

M18-39

4989

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10802

Males

7355

M18-39

7355

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2story building
+22ft-21ft

Overall

10069

Males

7006

M18-39

7006

Passing Analysis

Category:
Athletes Passed
3497
Passed By
541
Net Change
+2956
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6550
5K → 10K87510+865#6550#5685
10K → 15K6342+632#5685#5053
15K → 20K5522+550#5053#4503
20K → Half710+71#4503#4432
Half → 25K2881+287#4432#4145
25K → 30K4841+483#4145#3662
30K → 20M2020+202#3662#3460
20M → 21M1336+127#3460#3333
21M → 35K1003+97#3333#3236
35K → 23M9522+73#3236#3163
23M → 24M2761-34#3163#3197
24M → 40K23106-83#3197#3280
40K → 25.2M3108-105#3280#3385
25.2M → Finish10219-209#3385#3594
TOTALS3497541+2956
📊

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