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BOSTON MARATHON 2024

James Blizzard

Bib: 4244•M

NC

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 37%
Gender (Male)
#0 / 14578
Top 48%
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
24:38
Rank: #14082
Start → 5K
24:38 | 7:56/mi
10K· 6.21 mi
47:59
Rank: #12259 (+1823)
5K → 10K
23:21 | 7:31/mi
15K· 9.32 mi
1:10:05
Rank: #10319 (+1940)
10K → 15K
22:06 | 7:07/mi
20K· 12.43 mi
1:32:26
Rank: #9147 (+1172)
15K → 20K
22:21 | 7:12/mi
Half· 13.11 mi
1:37:07
Rank: #8893 (+254)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:54:00
Rank: #7885 (+1008)
Half → 25K
16:53 | 6:58/mi
30K· 18.64 mi
2:16:15
Rank: #6880 (+1005)
25K → 30K
22:15 | 7:10/mi
20M
2:27:13
Rank: #6808 (+72)
30K → 20M
10:58 | 8:04/mi
21M
2:36:52
Rank: #7019 (-211)
20M → 21M
9:39 | 9:39/mi
35K· 21.75 mi
2:43:56
Rank: #7337 (-318)
21M → 35K
7:04 | 9:27/mi
23M
2:57:25
Rank: #8134 (-797)
35K → 23M
13:29 | 10:46/mi
24M
3:07:38
Rank: #8635 (-501)
23M → 24M
10:13 | 10:13/mi
40K· 24.85 mi
3:17:28
Rank: #9318 (-683)
24M → 40K
9:50 | 11:30/mi
25.2M
3:21:14
Rank: #9436 (-118)
40K → 25.2M
3:46 | 10:55/mi
Finish· 26.22 mi
3:29:38
Rank: #9471 (-35)
25.2M → Finish
8:24 | 8:15/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:07
Pace7:24 /mi
2nd Half
Distance13.11 mi
Time1:52:31
Pace8:35 /mi
📊Positive Split: 15.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:1424:387:5624:38
7:56
-
10K
6.21 mi10:50:3547:597:4323:21
7:31
-0:25
15K
9.32 mi11:12:411:10:057:3122:06
7:07
-0:24
20K
12.43 mi11:35:021:32:267:2622:21
7:12
+0:05
Half
13.11 mi11:39:431:37:077:244:41
6:52
-0:20
25K
15.53 mi11:56:361:54:007:2016:53
6:58
+0:06
30K
18.64 mi12:18:512:16:157:1922:15
7:10
+0:12
20M
20.00 mi12:29:492:27:137:2210:58
8:04
+0:54
21M
21.00 mi12:39:282:36:527:289:39
9:39
+1:35
35K
21.75 mi12:46:322:43:567:327:04
9:27
-0:12
23M
23.00 mi13:00:012:57:257:4313:29
10:46
+1:19
24M
24.00 mi13:10:143:07:387:4910:13
10:13
-0:33
40K
24.85 mi13:20:043:17:287:579:50
11:30
+1:17
25.2M
25.20 mi13:23:503:21:147:593:46
10:55
-0:35
Finish
26.22 mi13:32:143:29:388:008:24
8:15
-2:40

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

6:52 /mi

Average Pace

8:00 /mi

Slowest Pace

11:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:16

42% of race

Time at Steady Pace

1:07:21

32% of race

Time at Slower Pace

54:01

26% of race

Average Pace: 8:00 /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 mi10:27:1424:387:5624:38
7:56
#14082
10K
6.21 mi10:50:3547:597:4323:21
7:31
#12259
15K
9.32 mi11:12:411:10:057:3122:06
7:07
#10319
20K
12.43 mi11:35:021:32:267:2622:21
7:12
#9147
Half
13.11 mi11:39:431:37:077:244:41
6:52
#8893
25K
15.53 mi11:56:361:54:007:2016:53
6:58
#7885
30K
18.64 mi12:18:512:16:157:1922:15
7:10
#6880
20M
20.00 mi12:29:492:27:137:2210:58
8:04
#6808
21M
21.00 mi12:39:282:36:527:289:39
9:39
#7019
35K
21.75 mi12:46:322:43:567:327:04
9:27
#7337
23M
23.00 mi13:00:012:57:257:4313:29
10:46
#8134
24M
24.00 mi13:10:143:07:387:4910:13
10:13
#8635
40K
24.85 mi13:20:043:17:287:579:50
11:30
#9318
25.2M
25.20 mi13:23:503:21:147:593:46
10:55
#9436
Finish
26.22 mi13:32:143:29:388:008:24
8:15
#9471
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi14082967696766876(Top 27%)5991(Top 41%)5991(Top 124%)
10K6.21 mi3.10 mi12259+18238911+7658911+76510394(Top 41%)8070(Top 55%)8070(Top 166%)
15K9.32 mi3.11 mi10319+19408048+8638048+8636876(Top 27%)5991(Top 41%)5991(Top 124%)
20K12.43 mi3.11 mi9147+11727387+6617387+6616348(Top 25%)5559(Top 38%)5559(Top 115%)
Half13.11 mi0.68 mi8893+2547248+1397248+1394992(Top 20%)4569(Top 31%)4569(Top 94%)
25K15.53 mi2.42 mi7885+10086621+6276621+6274184(Top 16%)3853(Top 26%)3853(Top 79%)
30K18.64 mi3.11 mi6880+10055915+7065915+7063632(Top 14%)3316(Top 23%)3316(Top 68%)
20M20.00 mi1.36 mi6808+725829+865829+867176(Top 28%)5544(Top 38%)5544(Top 114%)
21M21.00 mi1.00 mi7019-2115914-855914-8511462(Top 45%)7446(Top 51%)7446(Top 154%)
35K21.75 mi0.75 mi7337-3186084-1706084-17015260(Top 60%)9249(Top 63%)9249(Top 191%)
23M23.00 mi1.25 mi8134-7976477-3936477-39317735(Top 69%)10413(Top 71%)10413(Top 215%)
24M24.00 mi1.00 mi8635-5016704-2276704-22716993(Top 67%)10004(Top 69%)10004(Top 206%)
40K24.85 mi0.85 mi9318-6837016-3127016-31219311(Top 76%)11102(Top 76%)11102(Top 229%)
25.2M25.20 mi0.35 mi9436-1187055-397055-3914180(Top 55%)8492(Top 58%)8492(Top 175%)
Finish26.22 mi1.02 mi9471-357041+147041+149973(Top 39%)6440(Top 44%)6440(Top 133%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

6876

Males

5991

M18-39

5991

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

10394

Males

8070

M18-39

8070

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

6876

Males

5991

M18-39

5991

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

6348

Males

5559

M18-39

5559

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

4992

Males

4569

M18-39

4569

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4184

Males

3853

M18-39

3853

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3632

Males

3316

M18-39

3316

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

7176

Males

5544

M18-39

5544

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

11462

Males

7446

M18-39

7446

21M→35K

21.0 - 21.8 mi

Top 60%
×7stories
+17ft-86ft

Overall

15260

Males

9249

M18-39

9249

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

17735

Males

10413

M18-39

10413

23M→24M

23.0 - 24.0 mi

Top 67%
×6stories
+12ft-82ft

Overall

16993

Males

10004

M18-39

10004

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

19311

Males

11102

M18-39

11102

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

14180

Males

8492

M18-39

8492

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2stories
+22ft-21ft

Overall

9973

Males

6440

M18-39

6440

Passing Analysis

Category:
Athletes Passed
7600*
Passed By
2989
Net Change
+4611
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14082
5K → 10K18296+1823#14082#12259
10K → 15K19411+1940#12259#10319
15K → 20K1174*2+1172#10319#9147
20K → Half2540+254#9147#8893
Half → 25K10080+1008#8893#7885
25K → 30K10050+1005#7885#6880
30K → 20M15684+72#6880#6808
20M → 21M64275-211#6808#7019
21M → 35K29347-318#7019#7337
35K → 23M21818-797#7337#8134
23M → 24M20521-501#8134#8635
24M → 40K11694-683#8635#9318
40K → 25.2M18136-118#9318#9436
25.2M → Finish70105-35#9436#9471
TOTALS7600*2989+4611

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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