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BOSTON MARATHON 2025

Patrick Brennan

Bib: 2599•M

FL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 24%
Gender (Male)
#0 / 16105
Top 36%
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
20:16
Rank: #4018
Start → 5K
20:16 | 6:31/mi
10K· 6.21 mi
40:41
Rank: #4122 (-104)
5K → 10K
20:25 | 6:34/mi
15K· 9.32 mi
1:01:03
Rank: #4034 (+88)
10K → 15K
20:22 | 6:33/mi
20K· 12.43 mi
1:21:51
Rank: #4058 (-24)
15K → 20K
20:48 | 6:42/mi
Half· 13.11 mi
1:26:28
Rank: #4139 (-81)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:43:05
Rank: #4263 (-124)
Half → 25K
16:37 | 6:51/mi
30K· 18.64 mi
2:05:46
Rank: #4720 (-457)
25K → 30K
22:41 | 7:18/mi
20M
2:16:07
Rank: #4972 (-252)
30K → 20M
10:21 | 7:37/mi
21M
2:24:16
Rank: #5203 (-231)
20M → 21M
8:09 | 8:09/mi
35K· 21.75 mi
2:30:04
Rank: #5378 (-175)
21M → 35K
5:48 | 7:45/mi
23M
2:40:15
Rank: #5605 (-227)
35K → 23M
10:11 | 8:08/mi
24M
2:48:35
Rank: #5847 (-242)
23M → 24M
8:20 | 8:20/mi
40K· 24.85 mi
2:56:25
Rank: #6184 (-337)
24M → 40K
7:50 | 9:10/mi
25.2M
3:00:30
Rank: #6474 (-290)
40K → 25.2M
4:05 | 11:50/mi
Finish· 26.22 mi
3:09:08
Rank: #6811 (-337)
25.2M → Finish
8:38 | 8:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:28
Pace6:36 /mi
2nd Half
Distance13.11 mi
Time1:42:40
Pace7:50 /mi
📊Positive Split: 18.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:3820:166:3120:16
6:31
-
10K
6.21 mi10:42:0340:416:3320:25
6:34
+0:03
15K
9.32 mi11:02:251:01:036:3320:22
6:33
-0:01
20K
12.43 mi11:23:131:21:516:3520:48
6:42
+0:09
Half
13.11 mi11:27:501:26:286:364:37
6:46
+0:04
25K
15.53 mi11:44:271:43:056:3816:37
6:51
+0:05
30K
18.64 mi12:07:082:05:466:4522:41
7:18
+0:27
20M
20.00 mi12:17:292:16:076:4810:21
7:37
+0:19
21M
21.00 mi12:25:382:24:166:528:09
8:09
+0:32
35K
21.75 mi12:31:262:30:046:545:48
7:45
-0:24
23M
23.00 mi12:41:372:40:156:5810:11
8:08
+0:23
24M
24.00 mi12:49:572:48:357:018:20
8:20
+0:12
40K
24.85 mi12:57:472:56:257:067:50
9:10
+0:50
25.2M
25.20 mi13:01:523:00:307:104:05
11:50
+2:40
Finish
26.22 mi13:10:303:09:087:138:38
8:28
-3:22

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

6:31 /mi

Average Pace

7:13 /mi

Slowest Pace

11:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:05

55% of race

Time at Steady Pace

57:10

30% of race

Time at Slower Pace

28:53

15% of race

Average Pace: 7:13 /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 mi10:21:3820:166:3120:16
6:31
#4018
10K
6.21 mi10:42:0340:416:3320:25
6:34
#4122
15K
9.32 mi11:02:251:01:036:3320:22
6:33
#4034
20K
12.43 mi11:23:131:21:516:3520:48
6:42
#4058
Half
13.11 mi11:27:501:26:286:364:37
6:46
#4139
25K
15.53 mi11:44:271:43:056:3816:37
6:51
#4263
30K
18.64 mi12:07:082:05:466:4522:41
7:18
#4720
20M
20.00 mi12:17:292:16:076:4810:21
7:37
#4972
21M
21.00 mi12:25:382:24:166:528:09
8:09
#5203
35K
21.75 mi12:31:262:30:046:545:48
7:45
#5378
23M
23.00 mi12:41:372:40:156:5810:11
8:08
#5605
24M
24.00 mi12:49:572:48:357:018:20
8:20
#5847
40K
24.85 mi12:57:472:56:257:067:50
9:10
#6184
25.2M
25.20 mi13:01:523:00:307:104:05
11:50
#6474
Finish
26.22 mi13:10:303:09:087:138:38
8:28
#6811
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4018379337933931(Top 14%)3707(Top 23%)3707(Top 66%)
10K6.21 mi3.10 mi4122-1043885-923885-924245(Top 15%)3990(Top 25%)3990(Top 71%)
15K9.32 mi3.11 mi4034+883803+823803+823931(Top 14%)3707(Top 23%)3707(Top 66%)
20K12.43 mi3.11 mi4058-243821-183821-184398(Top 15%)4112(Top 26%)4112(Top 73%)
Half13.11 mi0.68 mi4139-813894-733894-735873(Top 21%)5360(Top 33%)5360(Top 95%)
25K15.53 mi2.42 mi4263-1243998-1043998-1045316(Top 19%)4863(Top 30%)4863(Top 86%)
30K18.64 mi3.11 mi4720-4574380-3824380-3826466(Top 23%)5630(Top 35%)5630(Top 100%)
20M20.00 mi1.36 mi4972-2524583-2034583-2037782(Top 27%)6303(Top 39%)6303(Top 112%)
21M21.00 mi1.00 mi5203-2314772-1894772-1898237(Top 29%)6388(Top 40%)6388(Top 113%)
35K21.75 mi0.75 mi5378-1754910-1384910-13810403(Top 37%)7557(Top 47%)7557(Top 134%)
23M23.00 mi1.25 mi5605-2275080-1705080-17010922(Top 38%)7698(Top 48%)7698(Top 136%)
24M24.00 mi1.00 mi5847-2425243-1635243-16313433(Top 47%)8852(Top 55%)8852(Top 157%)
40K24.85 mi0.85 mi6184-3375483-2405483-24017140(Top 60%)10430(Top 65%)10430(Top 185%)
25.2M25.20 mi0.35 mi6474-2905673-1905673-19022834(Top 80%)13177(Top 82%)13177(Top 234%)
Finish26.22 mi1.02 mi6811-3375868-1955868-19515992(Top 56%)9924(Top 62%)9924(Top 176%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3931

Males

3707

M18-39

3707

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4245

Males

3990

M18-39

3990

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3931

Males

3707

M18-39

3707

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

4398

Males

4112

M18-39

4112

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5873

Males

5360

M18-39

5360

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5316

Males

4863

M18-39

4863

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

6466

Males

5630

M18-39

5630

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7782

Males

6303

M18-39

6303

20M→21M

20.0 - 21.0 mi

Top 29%
×8stories
+106ft-24ft

Overall

8237

Males

6388

M18-39

6388

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

10403

Males

7557

M18-39

7557

35K→23M

21.8 - 23.0 mi

Top 38%
×5stories
+23ft-63ft

Overall

10922

Males

7698

M18-39

7698

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

13433

Males

8852

M18-39

8852

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

17140

Males

10430

M18-39

10430

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

22834

Males

13177

M18-39

13177

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

15992

Males

9924

M18-39

9924

Passing Analysis

Category:
Athletes Passed
600
Passed By
3393
Net Change
-2793
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4018
5K → 10K113217-104#4018#4122
10K → 15K14153+88#4122#4034
15K → 20K91115-24#4034#4058
20K → Half384-81#4058#4139
Half → 25K57181-124#4139#4263
25K → 30K50507-457#4263#4720
30K → 20M27279-252#4720#4972
20M → 21M31262-231#4972#5203
21M → 35K15190-175#5203#5378
35K → 23M36263-227#5378#5605
23M → 24M14256-242#5605#5847
24M → 40K10347-337#5847#6184
40K → 25.2M1291-290#6184#6474
25.2M → Finish11348-337#6474#6811
TOTALS6003393-2793
📊

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