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BOSTON MARATHON 2025

Isaac Holloway

Bib: 7466•M

BC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 15%
Gender (Male)
#0 / 16105
Top 24%
Masters (Masters Men)
#0 / 10463
Top 10%
Division (M40-44)
#0 / 2247
Top 27%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:19
Rank: #4117
Start → 5K
20:19 | 6:32/mi
10K· 6.21 mi
41:01
Rank: #4501 (-384)
5K → 10K
20:42 | 6:40/mi
15K· 9.32 mi
1:01:50
Rank: #4656 (-155)
10K → 15K
20:49 | 6:42/mi
20K· 12.43 mi
1:22:54
Rank: #4737 (-81)
15K → 20K
21:04 | 6:47/mi
Half· 13.11 mi
1:27:24
Rank: #4702 (+35)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:43:50
Rank: #4657 (+45)
Half → 25K
16:26 | 6:47/mi
30K· 18.64 mi
2:05:31
Rank: #4591 (+66)
25K → 30K
21:41 | 6:59/mi
20M
2:14:59
Rank: #4503 (+88)
30K → 20M
9:28 | 6:58/mi
21M
2:22:25
Rank: #4459 (+44)
20M → 21M
7:26 | 7:26/mi
35K· 21.75 mi
2:27:37
Rank: #4458 (+1)
21M → 35K
5:12 | 6:57/mi
23M
2:36:22
Rank: #4375 (+83)
35K → 23M
8:45 | 6:59/mi
24M
2:43:15
Rank: #4322 (+53)
23M → 24M
6:53 | 6:53/mi
40K· 24.85 mi
2:49:09
Rank: #4257 (+65)
24M → 40K
5:54 | 6:54/mi
25.2M
2:51:50
Rank: #4262 (-5)
40K → 25.2M
2:41 | 7:47/mi
Finish· 26.22 mi
2:58:27
Rank: #4159 (+103)
25.2M → Finish
6:37 | 6:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:24
Pace6:40 /mi
2nd Half
Distance13.11 mi
Time1:31:03
Pace6:57 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:5920:196:3220:19
6:32
-
10K
6.21 mi10:48:4141:016:3620:42
6:40
+0:08
15K
9.32 mi11:09:301:01:506:3820:49
6:42
+0:02
20K
12.43 mi11:30:341:22:546:4021:04
6:47
+0:05
Half
13.11 mi11:35:041:27:246:404:30
6:36
-0:11
25K
15.53 mi11:51:301:43:506:4116:26
6:47
+0:11
30K
18.64 mi12:13:112:05:316:4421:41
6:59
+0:12
20M
20.00 mi12:22:392:14:596:459:28
6:58
-0:01
21M
21.00 mi12:30:052:22:256:477:26
7:26
+0:28
35K
21.75 mi12:35:172:27:376:475:12
6:57
-0:29
23M
23.00 mi12:44:022:36:226:488:45
6:59
+0:02
24M
24.00 mi12:50:552:43:156:486:53
6:53
-0:06
40K
24.85 mi12:56:492:49:096:485:54
6:54
+0:01
25.2M
25.20 mi12:59:302:51:506:492:41
7:47
+0:53
Finish
26.22 mi13:06:072:58:276:496:37
6:30
-1:17

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

6:30 /mi

Average Pace

6:49 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:20

94% of race

Time at Steady Pace

7:26

4% of race

Time at Slower Pace

2:41

2% of race

Average Pace: 6:48 /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 mi10:27:5920:196:3220:19
6:32
#4117
10K
6.21 mi10:48:4141:016:3620:42
6:40
#4501
15K
9.32 mi11:09:301:01:506:3820:49
6:42
#4656
20K
12.43 mi11:30:341:22:546:4021:04
6:47
#4737
Half
13.11 mi11:35:041:27:246:404:30
6:36
#4702
25K
15.53 mi11:51:301:43:506:4116:26
6:47
#4657
30K
18.64 mi12:13:112:05:316:4421:41
6:59
#4591
20M
20.00 mi12:22:392:14:596:459:28
6:58
#4503
21M
21.00 mi12:30:052:22:256:477:26
7:26
#4459
35K
21.75 mi12:35:172:27:376:475:12
6:57
#4458
23M
23.00 mi12:44:022:36:226:488:45
6:59
#4375
24M
24.00 mi12:50:552:43:156:486:53
6:53
#4322
40K
24.85 mi12:56:492:49:096:485:54
6:54
#4257
25.2M
25.20 mi12:59:302:51:506:492:41
7:47
#4262
Finish
26.22 mi13:06:072:58:276:496:37
6:30
#4159
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4117388138815055(Top 18%)4690(Top 29%)4690(Top 209%)
10K6.21 mi3.10 mi4501-3844229-3484229-3484990(Top 18%)4656(Top 29%)4656(Top 207%)
15K9.32 mi3.11 mi4656-1554358-1294358-1295055(Top 18%)4690(Top 29%)4690(Top 209%)
20K12.43 mi3.11 mi4737-814421-634421-635092(Top 18%)4694(Top 29%)4694(Top 209%)
Half13.11 mi0.68 mi4702+354390+314390+314326(Top 15%)4048(Top 25%)4048(Top 180%)
25K15.53 mi2.42 mi4657+454342+484342+484686(Top 16%)4315(Top 27%)4315(Top 192%)
30K18.64 mi3.11 mi4591+664276+664276+664563(Top 16%)4164(Top 26%)4164(Top 185%)
20M20.00 mi1.36 mi4503+884185+914185+913886(Top 14%)3569(Top 22%)3569(Top 159%)
21M21.00 mi1.00 mi4459+444138+474138+474262(Top 15%)3820(Top 24%)3820(Top 170%)
35K21.75 mi0.75 mi4458+14133+54133+55004(Top 18%)4371(Top 27%)4371(Top 195%)
23M23.00 mi1.25 mi4375+834050+834050+833679(Top 13%)3323(Top 21%)3323(Top 148%)
24M24.00 mi1.00 mi4322+533991+593991+593965(Top 14%)3504(Top 22%)3504(Top 156%)
40K24.85 mi0.85 mi4257+653928+633928+633336(Top 12%)2978(Top 18%)2978(Top 133%)
25.2M25.20 mi0.35 mi4262-5392839284691(Top 17%)3889(Top 24%)3889(Top 173%)
Finish26.22 mi1.02 mi4159+1033833+953833+952779(Top 10%)2486(Top 15%)2486(Top 111%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

5055

Males

4690

M40-44

4690

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

4990

Males

4656

M40-44

4656

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

5055

Males

4690

M40-44

4690

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

5092

Males

4694

M40-44

4694

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

4326

Males

4048

M40-44

4048

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4686

Males

4315

M40-44

4315

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4563

Males

4164

M40-44

4164

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3886

Males

3569

M40-44

3569

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4262

Males

3820

M40-44

3820

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

5004

Males

4371

M40-44

4371

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3679

Males

3323

M40-44

3323

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3965

Males

3504

M40-44

3504

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3336

Males

2978

M40-44

2978

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4691

Males

3889

M40-44

3889

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2779

Males

2486

M40-44

2486

Passing Analysis

Category:
Athletes Passed
1182
Passed By
1224
Net Change
-42
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4117
5K → 10K33417-384#4117#4501
10K → 15K57212-155#4501#4656
15K → 20K97178-81#4656#4737
20K → Half438+35#4737#4702
Half → 25K12176+45#4702#4657
25K → 30K177111+66#4657#4591
30K → 20M12032+88#4591#4503
20M → 21M9349+44#4503#4459
21M → 35K4443+1#4459#4458
35K → 23M10623+83#4458#4375
23M → 24M7623+53#4375#4322
24M → 40K8419+65#4322#4257
40K → 25.2M2126-5#4257#4262
25.2M → Finish1107+103#4262#4159
TOTALS11821224-42
📊

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