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BOSTON MARATHON 2024

David Nilsson

Bib: 23•M

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 0.5%
Gender (Male)
#0 / 14578
Top 0.8%
Division (M18-39)
#0 / 4849
Top 2%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
14:54
Rank: #19
Start → 5K
14:54 | 4:48/mi
10K· 6.21 mi
30:34
Rank: #19
5K → 10K
15:40 | 5:03/mi
15K· 9.32 mi
46:17
Rank: #19
10K → 15K
15:43 | 5:04/mi
20K· 12.43 mi
1:02:26
Rank: #19
15K → 20K
16:09 | 5:12/mi
Half· 13.11 mi
1:06:02
Rank: #19
20K → Half
3:36 | 5:17/mi
25K· 15.53 mi
1:18:40
Rank: #22 (-3)
Half → 25K
12:38 | 5:13/mi
30K· 18.64 mi
1:36:18
Rank: #27 (-5)
25K → 30K
17:38 | 5:41/mi
20M
1:44:56
Rank: #31 (-4)
30K → 20M
8:38 | 6:21/mi
21M
1:52:18
Rank: #33 (-2)
20M → 21M
7:22 | 7:22/mi
35K· 21.75 mi
1:57:38
Rank: #37 (-4)
21M → 35K
5:20 | 7:08/mi
23M
2:07:07
Rank: #54 (-17)
35K → 23M
9:29 | 7:34/mi
24M
2:14:37
Rank: #84 (-30)
23M → 24M
7:30 | 7:30/mi
40K· 24.85 mi
2:21:27
Rank: #114 (-30)
24M → 40K
6:50 | 8:00/mi
25.2M
2:24:25
Rank: #123 (-9)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
2:30:58
Rank: #131 (-8)
25.2M → Finish
6:33 | 6:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:06:02
Pace5:02 /mi
2nd Half
Distance13.11 mi
Time1:24:56
Pace6:29 /mi
📊Positive Split: 28.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi09:51:5614:544:4814:54
4:48
-
10K
6.21 mi10:07:3630:344:5515:40
5:03
+0:15
15K
9.32 mi10:23:1946:174:5815:43
5:04
+0:01
20K
12.43 mi10:39:281:02:265:0116:09
5:12
+0:08
Half
13.11 mi10:43:041:06:025:023:36
5:17
+0:05
25K
15.53 mi10:55:421:18:405:0412:38
5:13
-0:04
30K
18.64 mi11:13:201:36:185:1017:38
5:41
+0:28
20M
20.00 mi11:21:581:44:565:158:38
6:21
+0:40
21M
21.00 mi11:29:201:52:185:217:22
7:22
+1:01
35K
21.75 mi11:34:401:57:385:255:20
7:08
-0:14
23M
23.00 mi11:44:092:07:075:329:29
7:34
+0:26
24M
24.00 mi11:51:392:14:375:377:30
7:30
-0:04
40K
24.85 mi11:58:292:21:275:416:50
8:00
+0:30
25.2M
25.20 mi12:01:272:24:255:442:58
8:36
+0:36
Finish
26.22 mi12:08:002:30:585:466:33
6:26
-2:10

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

4:48 /mi

Average Pace

5:46 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:18

64% of race

Time at Steady Pace

15:11

10% of race

Time at Slower Pace

39:29

26% of race

Average Pace: 5:45 /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 mi09:51:5614:544:4814:54
4:48
#19
10K
6.21 mi10:07:3630:344:5515:40
5:03
#19
15K
9.32 mi10:23:1946:174:5815:43
5:04
#19
20K
12.43 mi10:39:281:02:265:0116:09
5:12
#19
Half
13.11 mi10:43:041:06:025:023:36
5:17
#19
25K
15.53 mi10:55:421:18:405:0412:38
5:13
#22
30K
18.64 mi11:13:201:36:185:1017:38
5:41
#27
20M
20.00 mi11:21:581:44:565:158:38
6:21
#31
21M
21.00 mi11:29:201:52:185:217:22
7:22
#33
35K
21.75 mi11:34:401:57:385:255:20
7:08
#37
23M
23.00 mi11:44:092:07:075:329:29
7:34
#54
24M
24.00 mi11:51:392:14:375:377:30
7:30
#84
40K
24.85 mi11:58:292:21:275:416:50
8:00
#114
25.2M
25.20 mi12:01:272:24:255:442:58
8:36
#123
Finish
26.22 mi12:08:002:30:585:466:33
6:26
#131
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi19191919(Top 0.07%)19(Top 0.1%)19(Top 0.4%)
10K6.21 mi3.10 mi19191919(Top 0.07%)19(Top 0.1%)19(Top 0.4%)
15K9.32 mi3.11 mi19191919(Top 0.07%)19(Top 0.1%)19(Top 0.4%)
20K12.43 mi3.11 mi19191930(Top 0.1%)30(Top 0.2%)30(Top 0.6%)
Half13.11 mi0.68 mi19191938(Top 0.1%)38(Top 0.3%)38(Top 0.8%)
25K15.53 mi2.42 mi22-322-322-325(Top 0.10%)25(Top 0.2%)25(Top 0.5%)
30K18.64 mi3.11 mi27-527-527-583(Top 0.3%)67(Top 0.5%)67(Top 1%)
20M20.00 mi1.36 mi31-431-431-4584(Top 2%)553(Top 4%)553(Top 11%)
21M21.00 mi1.00 mi33-233-233-22052(Top 8%)1901(Top 13%)1901(Top 39%)
35K21.75 mi0.75 mi37-437-437-43478(Top 14%)3072(Top 21%)3072(Top 63%)
23M23.00 mi1.25 mi54-1751-1451-143881(Top 15%)3292(Top 23%)3292(Top 68%)
24M24.00 mi1.00 mi84-3070-1970-194105(Top 16%)3365(Top 23%)3365(Top 69%)
40K24.85 mi0.85 mi114-3097-2797-275721(Top 22%)4166(Top 29%)4166(Top 86%)
25.2M25.20 mi0.35 mi123-9106-9106-94784(Top 19%)3590(Top 25%)3590(Top 74%)
Finish26.22 mi1.02 mi131-8114-8114-81178(Top 5%)1075(Top 7%)1075(Top 22%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.07%
×21stories
+97ft-345ft

Overall

19

Males

19

M18-39

19

5K→10K

3.1 - 6.2 mi

Top 0.07%
×5stories
+79ft-138ft

Overall

19

Males

19

M18-39

19

10K→15K

6.2 - 9.3 mi

Top 0.07%
×3stories
+67ft-78ft

Overall

19

Males

19

M18-39

19

15K→20K

9.3 - 12.4 mi

Top 0.1%
×5stories
+106ft-86ft

Overall

30

Males

30

M18-39

30

20K→Half

12.4 - 13.1 mi

Top 0.1%
×2stories
+19ft-37ft

Overall

38

Males

38

M18-39

38

Half→25K

13.1 - 15.5 mi

Top 0.10%
×4stories
+66ft-88ft

Overall

25

Males

25

M18-39

25

25K→30K

15.5 - 18.6 mi

Top 0.3%
×9stories
+181ft-148ft

Overall

83

Males

67

M18-39

67

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

584

Males

553

M18-39

553

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2052

Males

1901

M18-39

1901

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

3478

Males

3072

M18-39

3072

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

3881

Males

3292

M18-39

3292

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4105

Males

3365

M18-39

3365

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5721

Males

4166

M18-39

4166

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

4784

Males

3590

M18-39

3590

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1178

Males

1075

M18-39

1075

Passing Analysis

Category:
Athletes Passed
0
Passed By
112
Net Change
-112
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19
5K → 10K000#19#19
10K → 15K000#19#19
15K → 20K000#19#19
20K → Half000#19#19
Half → 25K03-3#19#22
25K → 30K05-5#22#27
30K → 20M04-4#27#31
20M → 21M02-2#31#33
21M → 35K04-4#33#37
35K → 23M017-17#37#54
23M → 24M030-30#54#84
24M → 40K030-30#84#114
40K → 25.2M09-9#114#123
25.2M → Finish08-8#123#131
TOTALS0112-112
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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