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BOSTON MARATHON 2025

Peter Mackrell

Bib: 318•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 0.7%
Gender (Male)
#0 / 16105
Top 1%
Masters (Masters Men)
#0 / 10463
Top 0.1%
Division (M40-44)
#0 / 2247
Top 0.4%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
16:46
Rank: #120
Start → 5K
5:24/mi
16:46 split
10K· 6.21 mi
33:47
Rank: #153 (-33)
5K → 10K
5:29/mi
17:01 split
15K· 9.32 mi
51:06
Rank: #173 (-20)
10K → 15K
5:34/mi
17:19 split
20K· 12.43 mi
1:08:36
Rank: #185 (-12)
15K → 20K
5:38/mi
17:30 split
Half· 13.11 mi
1:12:23
Rank: #184 (+1)
20K → Half
5:33/mi
3:47 split
25K· 15.53 mi
1:26:07
Rank: #187 (-3)
Half → 25K
5:40/mi
13:44 split
30K· 18.64 mi
1:44:08
Rank: #190 (-3)
25K → 30K
5:48/mi
18:01 split
20M
1:52:12
Rank: #186 (+4)
30K → 20M
5:56/mi
8:04 split
21M
1:58:22
Rank: #183 (+3)
20M → 21M
6:10/mi
6:10 split
35K· 21.75 mi
2:02:33
Rank: #174 (+9)
21M → 35K
5:36/mi
4:11 split
23M
2:10:02
Rank: #174
35K → 23M
5:59/mi
7:29 split
24M
2:15:58
Rank: #179 (-5)
23M → 24M
5:56/mi
5:56 split
40K· 24.85 mi
2:21:12
Rank: #180 (-1)
24M → 40K
6:07/mi
5:14 split
25.2M
2:23:27
Rank: #180
40K → 25.2M
6:31/mi
2:15 split
Finish· 26.22 mi
2:29:41
Rank: #187 (-7)
25.2M → Finish
6:07/mi
6:14 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:12:23
Pace5:31 /mi
2nd Half
Distance13.11 mi
Time1:17:18
Pace5:54 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:16:4916:465:2416:46
5:24
-
10K
6.21 mi10:33:5033:475:2617:01
5:29
+0:05
15K
9.32 mi10:51:0951:065:2917:19
5:34
+0:05
20K
12.43 mi11:08:391:08:365:3117:30
5:38
+0:04
Half
13.11 mi11:12:261:12:235:313:47
5:33
-0:05
25K
15.53 mi11:26:101:26:075:3313:44
5:40
+0:07
30K
18.64 mi11:44:111:44:085:3518:01
5:48
+0:08
20M
20.00 mi11:52:151:52:125:378:04
5:56
+0:08
21M
21.00 mi11:58:251:58:225:386:10
6:10
+0:14
35K
21.75 mi12:02:362:02:335:384:11
5:36
-0:34
23M
23.00 mi12:10:052:10:025:397:29
5:59
+0:23
24M
24.00 mi12:16:012:15:585:405:56
5:56
-0:03
40K
24.85 mi12:21:152:21:125:415:14
6:07
+0:11
25.2M
25.20 mi12:23:302:23:275:422:15
6:31
+0:24
Finish
26.22 mi12:29:442:29:415:436:14
6:07
-0:24

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

5:24 /mi

Average Pace

5:43 /mi

Slowest Pace

6:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:16:34

51% of race

Time at Steady Pace

45:45

31% of race

Time at Slower Pace

27:22

18% of race

Average Pace: 5:43 /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 mi10:16:4916:465:2416:46
5:24
#120
10K
6.21 mi10:33:5033:475:2617:01
5:29
#153
15K
9.32 mi10:51:0951:065:2917:19
5:34
#173
20K
12.43 mi11:08:391:08:365:3117:30
5:38
#185
Half
13.11 mi11:12:261:12:235:313:47
5:33
#184
25K
15.53 mi11:26:101:26:075:3313:44
5:40
#187
30K
18.64 mi11:44:111:44:085:3518:01
5:48
#190
20M
20.00 mi11:52:151:52:125:378:04
5:56
#186
21M
21.00 mi11:58:251:58:225:386:10
6:10
#183
35K
21.75 mi12:02:362:02:335:384:11
5:36
#174
23M
23.00 mi12:10:052:10:025:397:29
5:59
#174
24M
24.00 mi12:16:012:15:585:405:56
5:56
#179
40K
24.85 mi12:21:152:21:125:415:14
6:07
#180
25.2M
25.20 mi12:23:302:23:275:422:15
6:31
#180
Finish
26.22 mi12:29:442:29:415:436:14
6:07
#187
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi120119119228(Top 0.8%)201(Top 1%)201(Top 9%)
10K6.21 mi3.10 mi153-33131-12131-12187(Top 0.7%)160(Top 1.0%)160(Top 7%)
15K9.32 mi3.11 mi173-20148-17148-17228(Top 0.8%)201(Top 1%)201(Top 9%)
20K12.43 mi3.11 mi185-12160-12160-12232(Top 0.8%)208(Top 1%)208(Top 9%)
Half13.11 mi0.68 mi184+1159+1159+1230(Top 0.8%)206(Top 1%)206(Top 9%)
25K15.53 mi2.42 mi187-3162-3162-3253(Top 0.9%)227(Top 1%)227(Top 10%)
30K18.64 mi3.11 mi190-3167-5167-5243(Top 0.9%)221(Top 1%)221(Top 10%)
20M20.00 mi1.36 mi186+4164+3164+3305(Top 1%)281(Top 2%)281(Top 13%)
21M21.00 mi1.00 mi183+3161+3161+3233(Top 0.8%)216(Top 1%)216(Top 10%)
35K21.75 mi0.75 mi174+9153+8153+8173(Top 0.6%)157(Top 1.0%)157(Top 7%)
23M23.00 mi1.25 mi174153153305(Top 1%)283(Top 2%)283(Top 13%)
24M24.00 mi1.00 mi179-5158-5158-5446(Top 2%)412(Top 3%)412(Top 18%)
40K24.85 mi0.85 mi180-1159-1159-1563(Top 2%)525(Top 3%)525(Top 23%)
25.2M25.20 mi0.35 mi180159159456(Top 2%)421(Top 3%)421(Top 19%)
Finish26.22 mi1.02 mi187-7166-7166-71224(Top 4%)1142(Top 7%)1142(Top 51%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.8%
×21story building
+97ft-345ft

Overall

228

Males

201

M40-44

201

5K→10K

3.1 - 6.2 mi

Top 0.7%
×5story building
+79ft-138ft

Overall

187

Males

160

M40-44

160

10K→15K

6.2 - 9.3 mi

Top 0.8%
×3story building
+67ft-78ft

Overall

228

Males

201

M40-44

201

15K→20K

9.3 - 12.4 mi

Top 0.8%
×5story building
+106ft-86ft

Overall

232

Males

208

M40-44

208

20K→Half

12.4 - 13.1 mi

Top 0.8%
×2story building
+19ft-37ft

Overall

230

Males

206

M40-44

206

Half→25K

13.1 - 15.5 mi

Top 0.9%
×4story building
+66ft-88ft

Overall

253

Males

227

M40-44

227

25K→30K

15.5 - 18.6 mi

Top 0.9%
×9story building
+181ft-148ft

Overall

243

Males

221

M40-44

221

30K→20M

18.6 - 20.0 mi

Top 1%
×5story building
+64ft-50ft

Overall

305

Males

281

M40-44

281

20M→21M

20.0 - 21.0 mi

Top 0.8%
×8story building
+106ft-24ft

Overall

233

Males

216

M40-44

216

21M→35K

21.0 - 21.8 mi

Top 0.6%
×7story building
+17ft-86ft

Overall

173

Males

157

M40-44

157

35K→23M

21.8 - 23.0 mi

Top 1%
×5story building
+23ft-63ft

Overall

305

Males

283

M40-44

283

23M→24M

23.0 - 24.0 mi

Top 2%
×6story building
+12ft-82ft

Overall

446

Males

412

M40-44

412

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

563

Males

525

M40-44

525

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

456

Males

421

M40-44

421

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2story building
+22ft-21ft

Overall

1224

Males

1142

M40-44

1142

Passing Analysis

Category:
Athletes Passed
64
Passed By
131
Net Change
-67
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#120
5K → 10K639-33#120#153
10K → 15K222-20#153#173
15K → 20K618-12#173#185
20K → Half21+1#185#184
Half → 25K912-3#184#187
25K → 30K1215-3#187#190
30K → 20M51+4#190#186
20M → 21M30+3#186#183
21M → 35K112+9#183#174
35K → 23M110#174#174
23M → 24M16-5#174#179
24M → 40K12-1#179#180
40K → 25.2M110#180#180
25.2M → Finish411-7#180#187
TOTALS64131-67
📊

Passing Visuals

Category:
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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