Boston Marathon logo
BOSTON MARATHON 2025

Dan Courtney

Bib: 3605•M

IL

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 25%
Gender (Male)
#0 / 16105
Top 37%
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
22:57
Rank: #11165
Start → 5K
22:57 | 7:23/mi
10K· 6.21 mi
46:06
Rank: #11393 (-228)
5K → 10K
23:09 | 7:27/mi
15K· 9.32 mi
1:08:49
Rank: #10903 (+490)
10K → 15K
22:43 | 7:19/mi
20K· 12.43 mi
1:31:05
Rank: #10119 (+784)
15K → 20K
22:16 | 7:10/mi
Half· 13.11 mi
1:35:51
Rank: #9971 (+148)
20K → Half
4:46 | 6:59/mi
25K· 15.53 mi
1:53:00
Rank: #9342 (+629)
Half → 25K
17:09 | 7:04/mi
30K· 18.64 mi
2:15:35
Rank: #8618 (+724)
25K → 30K
22:35 | 7:16/mi
20M
2:25:36
Rank: #8380 (+238)
30K → 20M
10:01 | 7:22/mi
21M
2:33:14
Rank: #8102 (+278)
20M → 21M
7:38 | 7:38/mi
35K· 21.75 mi
2:38:28
Rank: #7943 (+159)
21M → 35K
5:14 | 7:00/mi
23M
2:47:31
Rank: #7696 (+247)
35K → 23M
9:03 | 7:14/mi
24M
2:54:28
Rank: #7479 (+217)
23M → 24M
6:57 | 6:57/mi
40K· 24.85 mi
3:00:26
Rank: #7289 (+190)
24M → 40K
5:58 | 6:59/mi
25.2M
3:03:01
Rank: #7195 (+94)
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
3:09:41
Rank: #6963 (+232)
25.2M → Finish
6:40 | 6:33/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 Half
Distance13.11 mi
Time1:35:51
Pace7:19 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:33:50
Pace7:09 /mi
📊Negative Split: 2.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:0222:577:2322:57
7:23
-
10K
6.21 mi10:49:1146:067:2523:09
7:27
+0:04
15K
9.32 mi11:11:541:08:497:2322:43
7:19
-0:08
20K
12.43 mi11:34:101:31:057:2022:16
7:10
-0:09
Half
13.11 mi11:38:561:35:517:194:46
6:59
-0:11
25K
15.53 mi11:56:051:53:007:1617:09
7:04
+0:05
30K
18.64 mi12:18:402:15:357:1622:35
7:16
+0:12
20M
20.00 mi12:28:412:25:367:1710:01
7:22
+0:06
21M
21.00 mi12:36:192:33:147:187:38
7:38
+0:16
35K
21.75 mi12:41:332:38:287:175:14
7:00
-0:38
23M
23.00 mi12:50:362:47:317:179:03
7:14
+0:14
24M
24.00 mi12:57:332:54:287:166:57
6:57
-0:17
40K
24.85 mi13:03:313:00:267:165:58
6:59
+0:02
25.2M
25.20 mi13:06:063:03:017:162:35
7:29
+0:30
Finish
26.22 mi13:12:463:09:417:146:40
6:33
-0:56

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

6:33 /mi

Average Pace

7:14 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:09:00

36% of race

Time at Steady Pace

2:00:41

64% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:14 /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 mi10:26:0222:577:2322:57
7:23
#11165
10K
6.21 mi10:49:1146:067:2523:09
7:27
#11393
15K
9.32 mi11:11:541:08:497:2322:43
7:19
#10903
20K
12.43 mi11:34:101:31:057:2022:16
7:10
#10119
Half
13.11 mi11:38:561:35:517:194:46
6:59
#9971
25K
15.53 mi11:56:051:53:007:1617:09
7:04
#9342
30K
18.64 mi12:18:402:15:357:1622:35
7:16
#8618
20M
20.00 mi12:28:412:25:367:1710:01
7:22
#8380
21M
21.00 mi12:36:192:33:147:187:38
7:38
#8102
35K
21.75 mi12:41:332:38:287:175:14
7:00
#7943
23M
23.00 mi12:50:362:47:317:179:03
7:14
#7696
24M
24.00 mi12:57:332:54:287:166:57
6:57
#7479
40K
24.85 mi13:03:313:00:267:165:58
6:59
#7289
25.2M
25.20 mi13:06:063:03:017:162:35
7:29
#7195
Finish
26.22 mi13:12:463:09:417:146:40
6:33
#6963
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi111658772877210065(Top 35%)8114(Top 50%)8114(Top 144%)
10K6.21 mi3.10 mi11393-2288865-938865-9311629(Top 41%)8966(Top 56%)8966(Top 159%)
15K9.32 mi3.11 mi10903+4908603+2628603+26210065(Top 35%)8114(Top 50%)8114(Top 144%)
20K12.43 mi3.11 mi10119+7848166+4378166+4377931(Top 28%)6824(Top 42%)6824(Top 121%)
Half13.11 mi0.68 mi9971+1488087+798087+797419(Top 26%)6509(Top 40%)6509(Top 115%)
25K15.53 mi2.42 mi9342+6297715+3727715+3726788(Top 24%)5965(Top 37%)5965(Top 106%)
30K18.64 mi3.11 mi8618+7247252+4637252+4636271(Top 22%)5500(Top 34%)5500(Top 97%)
20M20.00 mi1.36 mi8380+2387078+1747078+1746193(Top 22%)5324(Top 33%)5324(Top 94%)
21M21.00 mi1.00 mi8102+2786867+2116867+2115284(Top 19%)4583(Top 28%)4583(Top 81%)
35K21.75 mi0.75 mi7943+1596744+1236744+1235306(Top 19%)4588(Top 28%)4588(Top 81%)
23M23.00 mi1.25 mi7696+2476540+2046540+2045033(Top 18%)4340(Top 27%)4340(Top 77%)
24M24.00 mi1.00 mi7479+2176372+1686372+1684349(Top 15%)3801(Top 24%)3801(Top 67%)
40K24.85 mi0.85 mi7289+1906225+1476225+1473760(Top 13%)3305(Top 21%)3305(Top 59%)
25.2M25.20 mi0.35 mi7195+946154+716154+713349(Top 12%)2939(Top 18%)2939(Top 52%)
Finish26.22 mi1.02 mi6963+2325969+1855969+1853024(Top 11%)2692(Top 17%)2692(Top 48%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

10065

Males

8114

M18-39

8114

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

11629

Males

8966

M18-39

8966

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

10065

Males

8114

M18-39

8114

15K→20K

9.3 - 12.4 mi

Top 28%
×5stories
+106ft-86ft

Overall

7931

Males

6824

M18-39

6824

20K→Half

12.4 - 13.1 mi

Top 26%
×2stories
+19ft-37ft

Overall

7419

Males

6509

M18-39

6509

Half→25K

13.1 - 15.5 mi

Top 24%
×4stories
+66ft-88ft

Overall

6788

Males

5965

M18-39

5965

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

6271

Males

5500

M18-39

5500

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

6193

Males

5324

M18-39

5324

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5284

Males

4583

M18-39

4583

21M→35K

21.0 - 21.8 mi

Top 19%
×7stories
+17ft-86ft

Overall

5306

Males

4588

M18-39

4588

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

5033

Males

4340

M18-39

4340

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4349

Males

3801

M18-39

3801

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3760

Males

3305

M18-39

3305

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3349

Males

2939

M18-39

2939

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3024

Males

2692

M18-39

2692

Passing Analysis

Category:
Athletes Passed
4654*
Passed By
452
Net Change
+4202
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11165
5K → 10K158386-228#11165#11393
10K → 15K52131+490#11393#10903
15K → 20K7873+784#10903#10119
20K → Half150*2+148#10119#9971
Half → 25K6290+629#9971#9342
25K → 30K7284+724#9342#8618
30K → 20M2457+238#8618#8380
20M → 21M2802+278#8380#8102
21M → 35K1601+159#8102#7943
35K → 23M2558+247#7943#7696
23M → 24M2192+217#7696#7479
24M → 40K1911+190#7479#7289
40K → 25.2M962+94#7289#7195
25.2M → Finish2353+232#7195#6963
TOTALS4654*452+4202

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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