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BOSTON MARATHON 2024

Alexander Kerr

Bib: 26201•M

MA

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Division (M18-39)
#0 / 4849
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:17
Rank: #22408
Start → 5K
30:17 | 9:45/mi
10K· 6.21 mi
1:04:36
Rank: #23550 (-1142)
5K → 10K
34:19 | 11:03/mi
15K· 9.32 mi
1:43:15
Rank: #24387 (-837)
10K → 15K
38:39 | 12:26/mi
20K· 12.43 mi
2:26:27
Rank: #24789 (-402)
15K → 20K
43:12 | 13:54/mi
Half· 13.11 mi
2:35:18
Rank: #24823 (-34)
20K → Half
8:51 | 12:58/mi
25K· 15.53 mi
3:10:56
Rank: #24969 (-146)
Half → 25K
35:38 | 14:42/mi
30K· 18.64 mi
4:02:22
Rank: #25176 (-207)
25K → 30K
51:26 | 16:33/mi
20M
4:22:53
Rank: #25182 (-6)
30K → 20M
20:31 | 15:06/mi
21M
4:38:35
Rank: #25174 (+8)
20M → 21M
15:42 | 15:42/mi
35K· 21.75 mi
4:49:36
Rank: #25175 (-1)
21M → 35K
11:01 | 14:44/mi
23M
5:08:59
Rank: #25197 (-22)
35K → 23M
19:23 | 15:29/mi
24M
5:24:35
Rank: #25230 (-33)
23M → 24M
15:36 | 15:36/mi
40K· 24.85 mi
5:37:57
Rank: #25251 (-21)
24M → 40K
13:22 | 15:38/mi
25.2M
5:43:03
Rank: #25240 (+11)
40K → 25.2M
5:06 | 14:47/mi
Finish· 26.22 mi
5:55:21
Rank: #25214 (+26)
25.2M → Finish
12:18 | 12:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:35:18
Pace11:51 /mi
2nd Half
Distance13.11 mi
Time3:20:03
Pace15:16 /mi
📊Positive Split: 28.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:2630:179:4530:17
9:45
-
10K
6.21 mi12:22:451:04:3610:2434:19
11:03
+1:18
15K
9.32 mi13:01:241:43:1511:0538:39
12:26
+1:23
20K
12.43 mi13:44:362:26:2711:4743:12
13:54
+1:28
Half
13.11 mi13:53:272:35:1811:518:51
12:58
-0:56
25K
15.53 mi14:29:053:10:5612:1735:38
14:42
+1:44
30K
18.64 mi15:20:314:02:2213:0051:26
16:33
+1:51
20M
20.00 mi15:41:024:22:5313:0920:31
15:06
-1:27
21M
21.00 mi15:56:444:38:3513:1615:42
15:42
+0:36
35K
21.75 mi16:07:454:49:3613:1911:01
14:44
-0:58
23M
23.00 mi16:27:085:08:5913:2619:23
15:29
+0:45
24M
24.00 mi16:42:445:24:3513:3115:36
15:36
+0:07
40K
24.85 mi16:56:065:37:5713:3613:22
15:38
+0:02
25.2M
25.20 mi17:01:125:43:0313:375:06
14:47
-0:51
Finish
26.22 mi17:13:305:55:2113:3412:18
12:04
-2:43

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

9:45 /mi

Average Pace

13:34 /mi

Slowest Pace

16:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:24

35% of race

Time at Steady Pace

2:43:49

46% of race

Time at Slower Pace

1:07:08

19% of race

Average Pace: 13:33 /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 mi11:48:2630:179:4530:17
9:45
#22408
10K
6.21 mi12:22:451:04:3610:2434:19
11:03
#23550
15K
9.32 mi13:01:241:43:1511:0538:39
12:26
#24387
20K
12.43 mi13:44:362:26:2711:4743:12
13:54
#24789
Half
13.11 mi13:53:272:35:1811:518:51
12:58
#24823
25K
15.53 mi14:29:053:10:5612:1735:38
14:42
#24969
30K
18.64 mi15:20:314:02:2213:0051:26
16:33
#25176
20M
20.00 mi15:41:024:22:5313:0920:31
15:06
#25182
21M
21.00 mi15:56:444:38:3513:1615:42
15:42
#25174
35K
21.75 mi16:07:454:49:3613:1911:01
14:44
#25175
23M
23.00 mi16:27:085:08:5913:2619:23
15:29
#25197
24M
24.00 mi16:42:445:24:3513:3115:36
15:36
#25230
40K
24.85 mi16:56:065:37:5713:3613:22
15:38
#25251
25.2M
25.20 mi17:01:125:43:0313:375:06
14:47
#25240
Finish
26.22 mi17:13:305:55:2113:3412:18
12:04
#25214
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22408132521325225041(Top 98%)14391(Top 99%)14391(Top 297%)
10K6.21 mi3.10 mi23550-114213800-54813800-54824332(Top 95%)14122(Top 97%)14122(Top 291%)
15K9.32 mi3.11 mi24387-83714160-36014160-36025041(Top 98%)14391(Top 99%)14391(Top 297%)
20K12.43 mi3.11 mi24789-40214302-14214302-14225333(Top 99%)14485(Top 99%)14485(Top 299%)
Half13.11 mi0.68 mi24823-3414317-1514317-1525161(Top 98%)14387(Top 99%)14387(Top 297%)
25K15.53 mi2.42 mi24969-14614356-3914356-3925248(Top 99%)14431(Top 99%)14431(Top 298%)
30K18.64 mi3.11 mi25176-20714431-7514431-7525418(Top 99%)14504(Top 99%)14504(Top 299%)
20M20.00 mi1.36 mi25182-614428+314428+324805(Top 97%)14142(Top 97%)14142(Top 292%)
21M21.00 mi1.00 mi25174+814420+814420+824261(Top 95%)13822(Top 95%)13822(Top 285%)
35K21.75 mi0.75 mi25175-114415+514415+524755(Top 97%)14067(Top 96%)14067(Top 290%)
23M23.00 mi1.25 mi25197-2214422-714422-724904(Top 97%)14158(Top 97%)14158(Top 292%)
24M24.00 mi1.00 mi25230-3314435-1314435-1325020(Top 98%)14203(Top 97%)14203(Top 293%)
40K24.85 mi0.85 mi25251-2114439-414439-424857(Top 97%)14099(Top 97%)14099(Top 291%)
25.2M25.20 mi0.35 mi25240+1114433+614433+622768(Top 89%)12901(Top 88%)12901(Top 266%)
Finish26.22 mi1.02 mi25214+2614423+1014423+1023339(Top 91%)13199(Top 91%)13199(Top 272%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21stories
+97ft-345ft

Overall

25041

Males

14391

M18-39

14391

5K→10K

3.1 - 6.2 mi

Top 95%
×5stories
+79ft-138ft

Overall

24332

Males

14122

M18-39

14122

10K→15K

6.2 - 9.3 mi

Top 98%
×3stories
+67ft-78ft

Overall

25041

Males

14391

M18-39

14391

15K→20K

9.3 - 12.4 mi

Top 99%
×5stories
+106ft-86ft

Overall

25333

Males

14485

M18-39

14485

20K→Half

12.4 - 13.1 mi

Top 98%
×2stories
+19ft-37ft

Overall

25161

Males

14387

M18-39

14387

Half→25K

13.1 - 15.5 mi

Top 99%
×4stories
+66ft-88ft

Overall

25248

Males

14431

M18-39

14431

25K→30K

15.5 - 18.6 mi

Top 99%
×9stories
+181ft-148ft

Overall

25418

Males

14504

M18-39

14504

30K→20M

18.6 - 20.0 mi

Top 97%
×5stories
+64ft-50ft

Overall

24805

Males

14142

M18-39

14142

20M→21M

20.0 - 21.0 mi

Top 95%
×8stories
+106ft-24ft

Overall

24261

Males

13822

M18-39

13822

21M→35K

21.0 - 21.8 mi

Top 97%
×7stories
+17ft-86ft

Overall

24755

Males

14067

M18-39

14067

35K→23M

21.8 - 23.0 mi

Top 97%
×5stories
+23ft-63ft

Overall

24904

Males

14158

M18-39

14158

23M→24M

23.0 - 24.0 mi

Top 98%
×6stories
+12ft-82ft

Overall

25020

Males

14203

M18-39

14203

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

24857

Males

14099

M18-39

14099

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

22768

Males

12901

M18-39

12901

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2stories
+22ft-21ft

Overall

23339

Males

13199

M18-39

13199

Passing Analysis

Category:
Athletes Passed
204
Passed By
3010
Net Change
-2806
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22408
5K → 10K131155-1142#22408#23550
10K → 15K12849-837#23550#24387
15K → 20K7409-402#24387#24789
20K → Half1145-34#24789#24823
Half → 25K19165-146#24823#24969
25K → 30K16223-207#24969#25176
30K → 20M1723-6#25176#25182
20M → 21M2012+8#25182#25174
21M → 35K1617-1#25174#25175
35K → 23M1436-22#25175#25197
23M → 24M740-33#25197#25230
24M → 40K930-21#25230#25251
40K → 25.2M121+11#25251#25240
25.2M → Finish315+26#25240#25214
TOTALS2043010-2806
📊

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