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BOSTON MARATHON 2023

Ben Keefe

Bib: 4237•M

MO

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 14%
Gender (Male)
#0 / 15176
Top 22%
Masters (Masters Men)
#0 / 9891
Top 10%
Division (M40-44)
#0 / 2241
Top 25%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:00
Rank: #4237
Start → 5K
21:00 | 6:46/mi
10K· 6.21 mi
41:56
Rank: #4460 (-223)
5K → 10K
20:56 | 6:44/mi
15K· 9.32 mi
1:02:36
Rank: #4171 (+289)
10K → 15K
20:40 | 6:39/mi
20K· 12.43 mi
1:23:25
Rank: #3987 (+184)
15K → 20K
20:49 | 6:42/mi
Half· 13.11 mi
1:27:50
Rank: #3886 (+101)
20K → Half
4:25 | 6:28/mi
25K· 15.53 mi
1:44:00
Rank: #3722 (+164)
Half → 25K
16:10 | 6:40/mi
30K· 18.64 mi
2:05:10
Rank: #3569 (+153)
25K → 30K
21:10 | 6:49/mi
20M
2:14:29
Rank: #3487 (+82)
30K → 20M
9:19 | 6:51/mi
21M
2:21:41
Rank: #3430 (+57)
20M → 21M
7:12 | 7:12/mi
35K· 21.75 mi
2:26:43
Rank: #3415 (+15)
21M → 35K
5:02 | 6:44/mi
23M
2:35:23
Rank: #3375 (+40)
35K → 23M
8:40 | 6:55/mi
24M
2:42:15
Rank: #3408 (-33)
23M → 24M
6:52 | 6:52/mi
40K· 24.85 mi
2:48:24
Rank: #3461 (-53)
24M → 40K
6:09 | 7:12/mi
25.2M
2:51:06
Rank: #3480 (-19)
40K → 25.2M
2:42 | 7:50/mi
Finish· 26.22 mi
2:58:26
Rank: #3628 (-148)
25.2M → Finish
7:20 | 7:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:50
Pace6:42 /mi
2nd Half
Distance13.11 mi
Time1:30:36
Pace6:55 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:5621:006:4621:00
6:46
-
10K
6.21 mi10:43:5241:566:4520:56
6:44
-0:02
15K
9.32 mi11:04:321:02:366:4320:40
6:39
-0:05
20K
12.43 mi11:25:211:23:256:4320:49
6:42
+0:03
Half
13.11 mi11:29:461:27:506:424:25
6:28
-0:14
25K
15.53 mi11:45:561:44:006:4216:10
6:40
+0:12
30K
18.64 mi12:07:062:05:106:4321:10
6:49
+0:09
20M
20.00 mi12:16:252:14:296:439:19
6:51
+0:02
21M
21.00 mi12:23:372:21:416:457:12
7:12
+0:21
35K
21.75 mi12:28:392:26:436:455:02
6:44
-0:28
23M
23.00 mi12:37:192:35:236:458:40
6:55
+0:11
24M
24.00 mi12:44:112:42:156:466:52
6:52
-0:03
40K
24.85 mi12:50:202:48:246:476:09
7:12
+0:20
25.2M
25.20 mi12:53:022:51:066:472:42
7:50
+0:38
Finish
26.22 mi13:00:222:58:266:497:20
7:12
-0:38

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

6:28 /mi

Average Pace

6:49 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

25:05

14% of race

Time at Steady Pace

2:09:58

73% of race

Time at Slower Pace

23:23

13% 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 mi10:22:5621:006:4621:00
6:46
#4237
10K
6.21 mi10:43:5241:566:4520:56
6:44
#4460
15K
9.32 mi11:04:321:02:366:4320:40
6:39
#4171
20K
12.43 mi11:25:211:23:256:4320:49
6:42
#3987
Half
13.11 mi11:29:461:27:506:424:25
6:28
#3886
25K
15.53 mi11:45:561:44:006:4216:10
6:40
#3722
30K
18.64 mi12:07:062:05:106:4321:10
6:49
#3569
20M
20.00 mi12:16:252:14:296:439:19
6:51
#3487
21M
21.00 mi12:23:372:21:416:457:12
7:12
#3430
35K
21.75 mi12:28:392:26:436:455:02
6:44
#3415
23M
23.00 mi12:37:192:35:236:458:40
6:55
#3375
24M
24.00 mi12:44:112:42:156:466:52
6:52
#3408
40K
24.85 mi12:50:202:48:246:476:09
7:12
#3461
25.2M
25.20 mi12:53:022:51:066:472:42
7:50
#3480
Finish
26.22 mi13:00:222:58:266:497:20
7:12
#3628
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4237396639663699(Top 14%)3487(Top 23%)3487(Top 156%)
10K6.21 mi3.10 mi4460-2234171-2054171-2054695(Top 18%)4368(Top 29%)4368(Top 195%)
15K9.32 mi3.11 mi4171+2893915+2563915+2563699(Top 14%)3487(Top 23%)3487(Top 156%)
20K12.43 mi3.11 mi3987+1843752+1633752+1633584(Top 13%)3391(Top 22%)3391(Top 151%)
Half13.11 mi0.68 mi3886+1013663+893663+892674(Top 10%)2568(Top 17%)2568(Top 115%)
25K15.53 mi2.42 mi3722+1643519+1443519+1443133(Top 12%)2988(Top 20%)2988(Top 133%)
30K18.64 mi3.11 mi3569+1533378+1413378+1413074(Top 12%)2904(Top 19%)2904(Top 130%)
20M20.00 mi1.36 mi3487+823297+813297+813167(Top 12%)2973(Top 20%)2973(Top 133%)
21M21.00 mi1.00 mi3430+573248+493248+493101(Top 12%)2905(Top 19%)2905(Top 130%)
35K21.75 mi0.75 mi3415+153232+163232+163706(Top 14%)3423(Top 23%)3423(Top 153%)
23M23.00 mi1.25 mi3375+403196+363196+363366(Top 13%)3119(Top 21%)3119(Top 139%)
24M24.00 mi1.00 mi3408-333222-263222-263998(Top 15%)3646(Top 24%)3646(Top 163%)
40K24.85 mi0.85 mi3461-533269-473269-474810(Top 18%)4210(Top 28%)4210(Top 188%)
25.2M25.20 mi0.35 mi3480-193287-183287-185449(Top 20%)4548(Top 30%)4548(Top 203%)
Finish26.22 mi1.02 mi3628-1483414-1273414-1276348(Top 24%)5156(Top 34%)5156(Top 230%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3699

Males

3487

M40-44

3487

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

4695

Males

4368

M40-44

4368

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3699

Males

3487

M40-44

3487

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3584

Males

3391

M40-44

3391

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2674

Males

2568

M40-44

2568

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3133

Males

2988

M40-44

2988

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3074

Males

2904

M40-44

2904

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3167

Males

2973

M40-44

2973

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3101

Males

2905

M40-44

2905

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

3706

Males

3423

M40-44

3423

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3366

Males

3119

M40-44

3119

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

3998

Males

3646

M40-44

3646

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4810

Males

4210

M40-44

4210

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5449

Males

4548

M40-44

4548

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2stories
+22ft-21ft

Overall

6348

Males

5156

M40-44

5156

Passing Analysis

Category:
Athletes Passed
1514
Passed By
905
Net Change
+609
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4237
5K → 10K132355-223#4237#4460
10K → 15K31627+289#4460#4171
15K → 20K20723+184#4171#3987
20K → Half1032+101#3987#3886
Half → 25K18016+164#3886#3722
25K → 30K18835+153#3722#3569
30K → 20M10220+82#3569#3487
20M → 21M8629+57#3487#3430
21M → 35K3924+15#3430#3415
35K → 23M7535+40#3415#3375
23M → 24M2962-33#3375#3408
24M → 40K2982-53#3408#3461
40K → 25.2M928-19#3461#3480
25.2M → Finish19167-148#3480#3628
TOTALS1514905+609
📊

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