Boston Marathon logo
BOSTON MARATHON 2025

Charles Douglas

Bib: 4704•M

NB

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 14%
Division (M18-39)
#0 / 5642
Top 33%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:05
Rank: #3552
Start → 5K
20:05 | 6:28/mi
10K· 6.21 mi
39:45
Rank: #3038 (+514)
5K → 10K
19:40 | 6:20/mi
15K· 9.32 mi
59:22
Rank: #2797 (+241)
10K → 15K
19:37 | 6:19/mi
20K· 12.43 mi
1:19:02
Rank: #2600 (+197)
15K → 20K
19:40 | 6:20/mi
Half· 13.11 mi
1:23:19
Rank: #2596 (+4)
20K → Half
4:17 | 6:17/mi
25K· 15.53 mi
1:38:28
Rank: #2393 (+203)
Half → 25K
15:09 | 6:15/mi
30K· 18.64 mi
1:58:08
Rank: #2126 (+267)
25K → 30K
19:40 | 6:20/mi
20M
2:06:50
Rank: #2023 (+103)
30K → 20M
8:42 | 6:24/mi
21M
2:14:02
Rank: #2070 (-47)
20M → 21M
7:12 | 7:12/mi
35K· 21.75 mi
2:18:51
Rank: #2064 (+6)
21M → 35K
4:49 | 6:26/mi
23M
2:27:35
Rank: #2105 (-41)
35K → 23M
8:44 | 6:59/mi
24M
2:34:46
Rank: #2206 (-101)
23M → 24M
7:11 | 7:11/mi
40K· 24.85 mi
2:40:51
Rank: #2270 (-64)
24M → 40K
6:05 | 7:07/mi
25.2M
2:43:31
Rank: #2288 (-18)
40K → 25.2M
2:40 | 7:44/mi
Finish· 26.22 mi
2:50:35
Rank: #2370 (-82)
25.2M → Finish
7:04 | 6:56/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
Time1:23:19
Pace6:21 /mi
2nd Half
Distance13.11 mi
Time1:27:16
Pace6:39 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:5220:056:2820:05
6:28
-
10K
6.21 mi10:43:3239:456:2419:40
6:20
-0:08
15K
9.32 mi11:03:0959:226:2219:37
6:19
-0:01
20K
12.43 mi11:22:491:19:026:2219:40
6:20
+0:01
Half
13.11 mi11:27:061:23:196:214:17
6:17
-0:03
25K
15.53 mi11:42:151:38:286:2015:09
6:15
-0:02
30K
18.64 mi12:01:551:58:086:2019:40
6:20
+0:05
20M
20.00 mi12:10:372:06:506:208:42
6:24
+0:04
21M
21.00 mi12:17:492:14:026:237:12
7:12
+0:48
35K
21.75 mi12:22:382:18:516:234:49
6:26
-0:46
23M
23.00 mi12:31:222:27:356:258:44
6:59
+0:33
24M
24.00 mi12:38:332:34:466:277:11
7:11
+0:12
40K
24.85 mi12:44:382:40:516:286:05
7:07
-0:04
25.2M
25.20 mi12:47:182:43:316:292:40
7:44
+0:37
Finish
26.22 mi12:54:222:50:356:317:04
6:56
-0:48

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

6:15 /mi

Average Pace

6:31 /mi

Slowest Pace

7:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:11:39

77% of race

Time at Slower Pace

38:56

23% of race

Average Pace: 6:30 /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 mi10:23:5220:056:2820:05
6:28
#3552
10K
6.21 mi10:43:3239:456:2419:40
6:20
#3038
15K
9.32 mi11:03:0959:226:2219:37
6:19
#2797
20K
12.43 mi11:22:491:19:026:2219:40
6:20
#2600
Half
13.11 mi11:27:061:23:196:214:17
6:17
#2596
25K
15.53 mi11:42:151:38:286:2015:09
6:15
#2393
30K
18.64 mi12:01:551:58:086:2019:40
6:20
#2126
20M
20.00 mi12:10:372:06:506:208:42
6:24
#2023
21M
21.00 mi12:17:492:14:026:237:12
7:12
#2070
35K
21.75 mi12:22:382:18:516:234:49
6:26
#2064
23M
23.00 mi12:31:222:27:356:258:44
6:59
#2105
24M
24.00 mi12:38:332:34:466:277:11
7:11
#2206
40K
24.85 mi12:44:382:40:516:286:05
7:07
#2270
25.2M
25.20 mi12:47:182:43:316:292:40
7:44
#2288
Finish
26.22 mi12:54:222:50:356:317:04
6:56
#2370
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3552337333732408(Top 8%)2298(Top 14%)2298(Top 41%)
10K6.21 mi3.10 mi3038+5142890+4832890+4832603(Top 9%)2481(Top 15%)2481(Top 44%)
15K9.32 mi3.11 mi2797+2412666+2242666+2242408(Top 8%)2298(Top 14%)2298(Top 41%)
20K12.43 mi3.11 mi2600+1972481+1852481+1852150(Top 8%)2050(Top 13%)2050(Top 36%)
Half13.11 mi0.68 mi2596+42479+22479+22383(Top 8%)2280(Top 14%)2280(Top 40%)
25K15.53 mi2.42 mi2393+2032283+1962283+1961645(Top 6%)1565(Top 10%)1565(Top 28%)
30K18.64 mi3.11 mi2126+2672027+2562027+2561307(Top 5%)1234(Top 8%)1234(Top 22%)
20M20.00 mi1.36 mi2023+1031927+1001927+1001261(Top 4%)1192(Top 7%)1192(Top 21%)
21M21.00 mi1.00 mi2070-471970-431970-433104(Top 11%)2861(Top 18%)2861(Top 51%)
35K21.75 mi0.75 mi2064+61963+71963+72166(Top 8%)2025(Top 13%)2025(Top 36%)
23M23.00 mi1.25 mi2105-412003-402003-403574(Top 13%)3230(Top 20%)3230(Top 57%)
24M24.00 mi1.00 mi2206-1012099-962099-965667(Top 20%)4692(Top 29%)4692(Top 83%)
40K24.85 mi0.85 mi2270-642158-592158-594517(Top 16%)3849(Top 24%)3849(Top 68%)
25.2M25.20 mi0.35 mi2288-182174-162174-164407(Top 16%)3685(Top 23%)3685(Top 65%)
Finish26.22 mi1.02 mi2370-822246-722246-725271(Top 19%)4282(Top 27%)4282(Top 76%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2408

Males

2298

M18-39

2298

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2603

Males

2481

M18-39

2481

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2408

Males

2298

M18-39

2298

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2150

Males

2050

M18-39

2050

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2383

Males

2280

M18-39

2280

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1645

Males

1565

M18-39

1565

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1307

Males

1234

M18-39

1234

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1261

Males

1192

M18-39

1192

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

3104

Males

2861

M18-39

2861

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2166

Males

2025

M18-39

2025

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3574

Males

3230

M18-39

3230

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5667

Males

4692

M18-39

4692

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4517

Males

3849

M18-39

3849

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4407

Males

3685

M18-39

3685

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5271

Males

4282

M18-39

4282

Passing Analysis

Category:
Athletes Passed
1721
Passed By
539
Net Change
+1182
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3552
5K → 10K52612+514#3552#3038
10K → 15K25413+241#3038#2797
15K → 20K2058+197#2797#2600
20K → Half1612+4#2600#2596
Half → 25K2052+203#2596#2393
25K → 30K2714+267#2393#2126
30K → 20M1074+103#2126#2023
20M → 21M1966-47#2023#2070
21M → 35K2822+6#2070#2064
35K → 23M3273-41#2064#2105
23M → 24M18119-101#2105#2206
24M → 40K2286-64#2206#2270
40K → 25.2M927-18#2270#2288
25.2M → Finish991-82#2288#2370
TOTALS1721539+1182
📊

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