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BOSTON MARATHON 2025

C Fred Joslyn

Bib: 1270•M

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 11%
Gender (Male)
#0 / 16105
Top 19%
Masters (Masters Men)
#0 / 10463
Top 6%
Division (M40-44)
#0 / 2247
Top 19%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:39
Rank: #4977
Start → 5K
20:39 | 6:39/mi
10K· 6.21 mi
41:17
Rank: #4850 (+127)
5K → 10K
20:38 | 6:38/mi
15K· 9.32 mi
1:02:02
Rank: #4840 (+10)
10K → 15K
20:45 | 6:41/mi
20K· 12.43 mi
1:22:54
Rank: #4735 (+105)
15K → 20K
20:52 | 6:43/mi
Half· 13.11 mi
1:27:27
Rank: #4740 (-5)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:43:34
Rank: #4519 (+221)
Half → 25K
16:07 | 6:39/mi
30K· 18.64 mi
2:04:16
Rank: #4046 (+473)
25K → 30K
20:42 | 6:40/mi
20M
2:13:19
Rank: #3877 (+169)
30K → 20M
9:03 | 6:40/mi
21M
2:20:10
Rank: #3690 (+187)
20M → 21M
6:51 | 6:51/mi
35K· 21.75 mi
2:25:05
Rank: #3640 (+50)
21M → 35K
4:55 | 6:34/mi
23M
2:33:31
Rank: #3508 (+132)
35K → 23M
8:26 | 6:44/mi
24M
2:39:58
Rank: #3379 (+129)
23M → 24M
6:27 | 6:27/mi
40K· 24.85 mi
2:45:35
Rank: #3271 (+108)
24M → 40K
5:37 | 6:34/mi
25.2M
2:48:06
Rank: #3231 (+40)
40K → 25.2M
2:31 | 7:18/mi
Finish· 26.22 mi
2:54:44
Rank: #3186 (+45)
25.2M → Finish
6:38 | 6:31/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:27:27
Pace6:40 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:27:17
Pace6:39 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:2720:396:3920:39
6:39
-
10K
6.21 mi10:42:0541:176:3920:38
6:38
-0:01
15K
9.32 mi11:02:501:02:026:3920:45
6:41
+0:03
20K
12.43 mi11:23:421:22:546:4020:52
6:43
+0:02
Half
13.11 mi11:28:151:27:276:404:33
6:40
-0:03
25K
15.53 mi11:44:221:43:346:4016:07
6:39
-0:01
30K
18.64 mi12:05:042:04:166:4020:42
6:40
+0:01
20M
20.00 mi12:14:072:13:196:409:03
6:40
0:00
21M
21.00 mi12:20:582:20:106:406:51
6:51
+0:11
35K
21.75 mi12:25:532:25:056:404:55
6:34
-0:17
23M
23.00 mi12:34:192:33:316:408:26
6:44
+0:10
24M
24.00 mi12:40:462:39:586:406:27
6:27
-0:17
40K
24.85 mi12:46:232:45:356:405:37
6:34
+0:07
25.2M
25.20 mi12:48:542:48:066:402:31
7:18
+0:44
Finish
26.22 mi12:55:322:54:446:406:38
6:31
-0:47

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

6:27 /mi

Average Pace

6:40 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:13

99% of race

Time at Steady Pace

2:31

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:40 /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 mi10:21:2720:396:3920:39
6:39
#4977
10K
6.21 mi10:42:0541:176:3920:38
6:38
#4850
15K
9.32 mi11:02:501:02:026:3920:45
6:41
#4840
20K
12.43 mi11:23:421:22:546:4020:52
6:43
#4735
Half
13.11 mi11:28:151:27:276:404:33
6:40
#4740
25K
15.53 mi11:44:221:43:346:4016:07
6:39
#4519
30K
18.64 mi12:05:042:04:166:4020:42
6:40
#4046
20M
20.00 mi12:14:072:13:196:409:03
6:40
#3877
21M
21.00 mi12:20:582:20:106:406:51
6:51
#3690
35K
21.75 mi12:25:532:25:056:404:55
6:34
#3640
23M
23.00 mi12:34:192:33:316:408:26
6:44
#3508
24M
24.00 mi12:40:462:39:586:406:27
6:27
#3379
40K
24.85 mi12:46:232:45:356:405:37
6:34
#3271
25.2M
25.20 mi12:48:542:48:066:402:31
7:18
#3231
Finish
26.22 mi12:55:322:54:446:406:38
6:31
#3186
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4977465146514859(Top 17%)4530(Top 28%)4530(Top 202%)
10K6.21 mi3.10 mi4850+1274531+1204531+1204780(Top 17%)4470(Top 28%)4470(Top 199%)
15K9.32 mi3.11 mi4840+104521+104521+104859(Top 17%)4530(Top 28%)4530(Top 202%)
20K12.43 mi3.11 mi4735+1054419+1024419+1024558(Top 16%)4236(Top 26%)4236(Top 189%)
Half13.11 mi0.68 mi4740-54422-34422-34918(Top 17%)4547(Top 28%)4547(Top 202%)
25K15.53 mi2.42 mi4519+2214226+1964226+1963761(Top 13%)3526(Top 22%)3526(Top 157%)
30K18.64 mi3.11 mi4046+4733796+4303796+4302694(Top 9%)2548(Top 16%)2548(Top 113%)
20M20.00 mi1.36 mi3877+1693642+1543642+1542280(Top 8%)2154(Top 13%)2154(Top 96%)
21M21.00 mi1.00 mi3690+1873470+1723470+1721704(Top 6%)1608(Top 10%)1608(Top 72%)
35K21.75 mi0.75 mi3640+503422+483422+482811(Top 10%)2593(Top 16%)2593(Top 115%)
23M23.00 mi1.25 mi3508+1323298+1243298+1242409(Top 8%)2236(Top 14%)2236(Top 100%)
24M24.00 mi1.00 mi3379+1293180+1183180+1181859(Top 7%)1728(Top 11%)1728(Top 77%)
40K24.85 mi0.85 mi3271+1083080+1003080+1001862(Top 7%)1716(Top 11%)1716(Top 76%)
25.2M25.20 mi0.35 mi3231+403041+393041+392484(Top 9%)2218(Top 14%)2218(Top 99%)
Finish26.22 mi1.02 mi3186+452995+462995+462852(Top 10%)2547(Top 16%)2547(Top 113%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4859

Males

4530

M40-44

4530

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4780

Males

4470

M40-44

4470

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4859

Males

4530

M40-44

4530

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4558

Males

4236

M40-44

4236

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4918

Males

4547

M40-44

4547

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3761

Males

3526

M40-44

3526

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2694

Males

2548

M40-44

2548

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2280

Males

2154

M40-44

2154

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1704

Males

1608

M40-44

1608

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2811

Males

2593

M40-44

2593

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2409

Males

2236

M40-44

2236

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

1859

Males

1728

M40-44

1728

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1862

Males

1716

M40-44

1716

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2484

Males

2218

M40-44

2218

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2852

Males

2547

M40-44

2547

Passing Analysis

Category:
Athletes Passed
2180
Passed By
389
Net Change
+1791
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4977
5K → 10K239112+127#4977#4850
10K → 15K117107+10#4850#4840
15K → 20K17368+105#4840#4735
20K → Half2227-5#4735#4740
Half → 25K23716+221#4740#4519
25K → 30K4796+473#4519#4046
30K → 20M1701+169#4046#3877
20M → 21M1870+187#3877#3690
21M → 35K577+50#3690#3640
35K → 23M14210+132#3640#3508
23M → 24M1334+129#3508#3379
24M → 40K1102+108#3379#3271
40K → 25.2M444+40#3271#3231
25.2M → Finish7025+45#3231#3186
TOTALS2180389+1791
📊

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