Boston Marathon logo
BOSTON MARATHON 2025

Josh Dedering

Bib: 1408•M

MI

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 7%
Gender (Male)
#0 / 16105
Top 11%
Division (M18-39)
#0 / 5642
Top 26%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:53
Rank: #1344
Start → 5K
18:53 | 6:05/mi
10K· 6.21 mi
37:38
Rank: #1249 (+95)
5K → 10K
18:45 | 6:02/mi
15K· 9.32 mi
56:25
Rank: #1215 (+34)
10K → 15K
18:47 | 6:03/mi
20K· 12.43 mi
1:15:19
Rank: #1174 (+41)
15K → 20K
18:54 | 6:05/mi
Half· 13.11 mi
1:19:22
Rank: #1159 (+15)
20K → Half
4:03 | 5:56/mi
25K· 15.53 mi
1:34:09
Rank: #1130 (+29)
Half → 25K
14:47 | 6:06/mi
30K· 18.64 mi
1:55:02
Rank: #1365 (-235)
25K → 30K
20:53 | 6:43/mi
20M
2:05:37
Rank: #1743 (-378)
30K → 20M
10:35 | 7:47/mi
21M
2:13:31
Rank: #1950 (-207)
20M → 21M
7:54 | 7:54/mi
35K· 21.75 mi
2:18:21
Rank: #1933 (+17)
21M → 35K
4:50 | 6:28/mi
23M
2:26:43
Rank: #1912 (+21)
35K → 23M
8:22 | 6:41/mi
24M
2:33:15
Rank: #1908 (+4)
23M → 24M
6:32 | 6:32/mi
40K· 24.85 mi
2:38:58
Rank: #1892 (+16)
24M → 40K
5:43 | 6:41/mi
25.2M
2:41:31
Rank: #1899 (-7)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
2:47:58
Rank: #1876 (+23)
25.2M → Finish
6:27 | 6:20/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:22
Pace6:03 /mi
2nd Half
Distance13.11 mi
Time1:28:36
Pace6:46 /mi
📊Positive Split: 11.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:0018:536:0518:53
6:05
-
10K
6.21 mi10:40:4537:386:0318:45
6:02
-0:03
15K
9.32 mi10:59:3256:256:0318:47
6:03
+0:01
20K
12.43 mi11:18:261:15:196:0418:54
6:05
+0:02
Half
13.11 mi11:22:291:19:226:034:03
5:56
-0:09
25K
15.53 mi11:37:161:34:096:0414:47
6:06
+0:10
30K
18.64 mi11:58:091:55:026:1020:53
6:43
+0:37
20M
20.00 mi12:08:442:05:376:1710:35
7:47
+1:04
21M
21.00 mi12:16:382:13:316:217:54
7:54
+0:07
35K
21.75 mi12:21:282:18:216:224:50
6:28
-1:26
23M
23.00 mi12:29:502:26:436:238:22
6:41
+0:13
24M
24.00 mi12:36:222:33:156:236:32
6:32
-0:09
40K
24.85 mi12:42:052:38:586:245:43
6:41
+0:09
25.2M
25.20 mi12:44:382:41:316:252:33
7:24
+0:43
Finish
26.22 mi12:51:052:47:586:256:27
6:20
-1:04

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

5:56 /mi

Average Pace

6:25 /mi

Slowest Pace

7:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:09

56% of race

Time at Steady Pace

52:47

31% of race

Time at Slower Pace

21:02

13% of race

Average Pace: 6:24 /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 mi10:22:0018:536:0518:53
6:05
#1344
10K
6.21 mi10:40:4537:386:0318:45
6:02
#1249
15K
9.32 mi10:59:3256:256:0318:47
6:03
#1215
20K
12.43 mi11:18:261:15:196:0418:54
6:05
#1174
Half
13.11 mi11:22:291:19:226:034:03
5:56
#1159
25K
15.53 mi11:37:161:34:096:0414:47
6:06
#1130
30K
18.64 mi11:58:091:55:026:1020:53
6:43
#1365
20M
20.00 mi12:08:442:05:376:1710:35
7:47
#1743
21M
21.00 mi12:16:382:13:316:217:54
7:54
#1950
35K
21.75 mi12:21:282:18:216:224:50
6:28
#1933
23M
23.00 mi12:29:502:26:436:238:22
6:41
#1912
24M
24.00 mi12:36:222:33:156:236:32
6:32
#1908
40K
24.85 mi12:42:052:38:586:245:43
6:41
#1892
25.2M
25.20 mi12:44:382:41:316:252:33
7:24
#1899
Finish
26.22 mi12:51:052:47:586:256:27
6:20
#1876
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1344127912791186(Top 4%)1124(Top 7%)1124(Top 20%)
10K6.21 mi3.10 mi1249+951186+931186+931215(Top 4%)1152(Top 7%)1152(Top 20%)
15K9.32 mi3.11 mi1215+341152+341152+341186(Top 4%)1124(Top 7%)1124(Top 20%)
20K12.43 mi3.11 mi1174+411113+391113+391124(Top 4%)1060(Top 7%)1060(Top 19%)
Half13.11 mi0.68 mi1159+151098+151098+15975(Top 3%)925(Top 6%)925(Top 16%)
25K15.53 mi2.42 mi1130+291068+301068+301091(Top 4%)1029(Top 6%)1029(Top 18%)
30K18.64 mi3.11 mi1365-2351290-2221290-2222987(Top 11%)2809(Top 17%)2809(Top 50%)
20M20.00 mi1.36 mi1743-3781657-3671657-3678919(Top 31%)6943(Top 43%)6943(Top 123%)
21M21.00 mi1.00 mi1950-2071854-1971854-1976764(Top 24%)5535(Top 34%)5535(Top 98%)
35K21.75 mi0.75 mi1933+171837+171837+172286(Top 8%)2138(Top 13%)2138(Top 38%)
23M23.00 mi1.25 mi1912+211814+231814+232181(Top 8%)2038(Top 13%)2038(Top 36%)
24M24.00 mi1.00 mi1908+41810+41810+42198(Top 8%)2038(Top 13%)2038(Top 36%)
40K24.85 mi0.85 mi1892+161794+161794+162319(Top 8%)2124(Top 13%)2124(Top 38%)
25.2M25.20 mi0.35 mi1899-71798-41798-42941(Top 10%)2620(Top 16%)2620(Top 46%)
Finish26.22 mi1.02 mi1876+231776+221776+222022(Top 7%)1859(Top 12%)1859(Top 33%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

1186

Males

1124

M18-39

1124

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

1215

Males

1152

M18-39

1152

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

1186

Males

1124

M18-39

1124

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1124

Males

1060

M18-39

1060

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

975

Males

925

M18-39

925

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1091

Males

1029

M18-39

1029

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

2987

Males

2809

M18-39

2809

30K→20M

18.6 - 20.0 mi

Top 31%
×5stories
+64ft-50ft

Overall

8919

Males

6943

M18-39

6943

20M→21M

20.0 - 21.0 mi

Top 24%
×8stories
+106ft-24ft

Overall

6764

Males

5535

M18-39

5535

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2286

Males

2138

M18-39

2138

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2181

Males

2038

M18-39

2038

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2198

Males

2038

M18-39

2038

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2319

Males

2124

M18-39

2124

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2941

Males

2620

M18-39

2620

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

2022

Males

1859

M18-39

1859

Passing Analysis

Category:
Athletes Passed
535
Passed By
1067
Net Change
-532
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1344
5K → 10K11722+95#1344#1249
10K → 15K5925+34#1249#1215
15K → 20K5918+41#1215#1174
20K → Half194+15#1174#1159
Half → 25K4920+29#1159#1130
25K → 30K12247-235#1130#1365
30K → 20M1379-378#1365#1743
20M → 21M7214-207#1743#1950
21M → 35K3215+17#1950#1933
35K → 23M5433+21#1933#1912
23M → 24M3531+4#1912#1908
24M → 40K3923+16#1908#1892
40K → 25.2M714-7#1892#1899
25.2M → Finish4522+23#1899#1876
TOTALS5351067-532
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing