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BOSTON MARATHON 2024

Sean Kafke

Bib: 1356•M

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 13%
Gender (Male)
#0 / 14578
Top 21%
Division (M18-39)
#0 / 4849
Top 43%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:17/mi
19:31
↑ 97↓ 3451.5%
10K· 6.21 mi
6:15/mi
38:55
↑ 79↓ 1380.4%
15K· 9.32 mi
6:24/mi
58:47
↑ 67↓ 78
20K· 12.43 mi
6:32/mi
1:19:05
↑ 106↓ 860.1%
Half· 13.11 mi
6:31/mi
1:23:32
↑ 19↓ 370.5%
25K· 15.53 mi
6:44/mi
1:39:52
↑ 66↓ 880.2%
30K· 18.64 mi
7:14/mi
2:02:21
↑ 181↓ 1480.2%
20M
7:41/mi
2:12:47
↑ 64↓ 500.2%
21M
8:32/mi
2:21:19
↑ 106↓ 241.6%
35K· 21.75 mi
7:17/mi
2:26:46
↑ 17↓ 861.7%
23M
8:09/mi
2:36:58
↑ 23↓ 630.6%
24M
7:44/mi
2:44:42
↓ 821.3%
40K· 24.85 mi
8:08/mi
2:51:39
↓ 200.3%
25.2M
9:43/mi
2:55:00
↑ 13↓ 160.2%
Finish· 26.22 mi
8:08/mi
3:03:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:32
Pace6:22 /mi
2nd Half
Distance13.11 mi
Time1:39:45
Pace7:37 /mi
📊Positive Split: 19.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:5419:316:1719:31
6:17
-
10K
6.21 mi10:39:1838:556:1619:24
6:15
-0:02
15K
9.32 mi10:59:1058:476:1819:52
6:24
+0:09
20K
12.43 mi11:19:281:19:056:2220:18
6:32
+0:08
Half
13.11 mi11:23:551:23:326:224:27
6:31
-0:01
25K
15.53 mi11:40:151:39:526:2616:20
6:44
+0:13
30K
18.64 mi12:02:442:02:216:3422:29
7:14
+0:30
20M
20.00 mi12:13:102:12:476:3810:26
7:41
+0:27
21M
21.00 mi12:21:422:21:196:448:32
8:32
+0:51
35K
21.75 mi12:27:092:26:466:455:27
7:17
-1:15
23M
23.00 mi12:37:212:36:586:4910:12
8:09
+0:52
24M
24.00 mi12:45:052:44:426:527:44
7:44
-0:25
40K
24.85 mi12:52:022:51:396:546:57
8:08
+0:24
25.2M
25.20 mi12:55:232:55:006:573:21
9:43
+1:35
Finish
26.22 mi13:03:403:03:177:008:17
8:08
-1:35

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

6:15 /mi

Average Pace

7:00 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:52

54% of race

Time at Steady Pace

46:06

25% of race

Time at Slower Pace

37:19

20% of race

Average Pace: 6:59 /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 mi10:19:5419:316:1719:31
6:17
#2000
10K
6.21 mi10:39:1838:556:1619:24
6:15
#1815
15K
9.32 mi10:59:1058:476:1819:52
6:24
#1900
20K
12.43 mi11:19:281:19:056:2220:18
6:32
#1993
Half
13.11 mi11:23:551:23:326:224:27
6:31
#2034
25K
15.53 mi11:40:151:39:526:2616:20
6:44
#2100
30K
18.64 mi12:02:442:02:216:3422:29
7:14
#2321
20M
20.00 mi12:13:102:12:476:3810:26
7:41
#2495
21M
21.00 mi12:21:422:21:196:448:32
8:32
#2709
35K
21.75 mi12:27:092:26:466:455:27
7:17
#2752
23M
23.00 mi12:37:212:36:586:4910:12
8:09
#2995
24M
24.00 mi12:45:052:44:426:527:44
7:44
#3103
40K
24.85 mi12:52:022:51:396:546:57
8:08
#3204
25.2M
25.20 mi12:55:232:55:006:573:21
9:43
#3280
Finish
26.22 mi13:03:403:03:177:008:17
8:08
#3396
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2000193619362151(Top 8%)2078(Top 14%)2078(Top 43%)
10K6.21 mi3.10 mi1815+1851756+1801756+1801674(Top 7%)1622(Top 11%)1622(Top 33%)
15K9.32 mi3.11 mi1900-851837-811837-812151(Top 8%)2078(Top 14%)2078(Top 43%)
20K12.43 mi3.11 mi1993-931928-911928-912334(Top 9%)2241(Top 15%)2241(Top 46%)
Half13.11 mi0.68 mi2034-411966-381966-382746(Top 11%)2622(Top 18%)2622(Top 54%)
25K15.53 mi2.42 mi2100-662028-622028-622843(Top 11%)2686(Top 18%)2686(Top 55%)
30K18.64 mi3.11 mi2321-2212222-1942222-1943923(Top 15%)3555(Top 24%)3555(Top 73%)
20M20.00 mi1.36 mi2495-1742378-1562378-1565070(Top 20%)4285(Top 29%)4285(Top 88%)
21M21.00 mi1.00 mi2709-2142567-1892567-1896346(Top 25%)4875(Top 33%)4875(Top 101%)
35K21.75 mi0.75 mi2752-432602-352602-354076(Top 16%)3503(Top 24%)3503(Top 72%)
23M23.00 mi1.25 mi2995-2432816-2142816-2146484(Top 25%)4781(Top 33%)4781(Top 99%)
24M24.00 mi1.00 mi3103-1082903-872903-875173(Top 20%)3997(Top 27%)3997(Top 82%)
40K24.85 mi0.85 mi3204-1012979-762979-766382(Top 25%)4528(Top 31%)4528(Top 93%)
25.2M25.20 mi0.35 mi3280-763041-623041-629563(Top 37%)6083(Top 42%)6083(Top 125%)
Finish26.22 mi1.02 mi3396-1163125-843125-849312(Top 36%)6084(Top 42%)6084(Top 125%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21story building
+97ft-345ft

Overall

2151

Males

2078

M18-39

2078

5K→10K

3.1 - 6.2 mi

Top 7%
×5story building
+79ft-138ft

Overall

1674

Males

1622

M18-39

1622

10K→15K

6.2 - 9.3 mi

Top 8%
×3story building
+67ft-78ft

Overall

2151

Males

2078

M18-39

2078

15K→20K

9.3 - 12.4 mi

Top 9%
×5story building
+106ft-86ft

Overall

2334

Males

2241

M18-39

2241

20K→Half

12.4 - 13.1 mi

Top 11%
×2story building
+19ft-37ft

Overall

2746

Males

2622

M18-39

2622

Half→25K

13.1 - 15.5 mi

Top 11%
×4story building
+66ft-88ft

Overall

2843

Males

2686

M18-39

2686

25K→30K

15.5 - 18.6 mi

Top 15%
×9story building
+181ft-148ft

Overall

3923

Males

3555

M18-39

3555

30K→20M

18.6 - 20.0 mi

Top 20%
×5story building
+64ft-50ft

Overall

5070

Males

4285

M18-39

4285

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6346

Males

4875

M18-39

4875

21M→35K

21.0 - 21.8 mi

Top 16%
×7story building
+17ft-86ft

Overall

4076

Males

3503

M18-39

3503

35K→23M

21.8 - 23.0 mi

Top 25%
×5story building
+23ft-63ft

Overall

6484

Males

4781

M18-39

4781

23M→24M

23.0 - 24.0 mi

Top 20%
×6story building
+12ft-82ft

Overall

5173

Males

3997

M18-39

3997

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6382

Males

4528

M18-39

4528

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9563

Males

6083

M18-39

6083

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

9312

Males

6084

M18-39

6084

Passing Analysis

Category:
Athletes Passed
630
Passed By
2026
Net Change
-1396
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2000
5K → 10K22136+185#2000#1815
10K → 15K44129-85#1815#1900
15K → 20K56149-93#1900#1993
20K → Half142-41#1993#2034
Half → 25K56122-66#2034#2100
25K → 30K62283-221#2100#2321
30K → 20M27201-174#2321#2495
20M → 21M22236-214#2495#2709
21M → 35K3477-43#2709#2752
35K → 23M26269-243#2752#2995
23M → 24M22130-108#2995#3103
24M → 40K25126-101#3103#3204
40K → 25.2M480-76#3204#3280
25.2M → Finish30146-116#3280#3396
TOTALS6302026-1396
📊

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