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BOSTON MARATHON 2024

Jason Izworski

Bib: 10605•M

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M45-49)
#0 / 2218
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
8:15/mi
25:37
↑ 97↓ 3451.5%
10K· 6.21 mi
7:59/mi
50:26
↑ 79↓ 1380.4%
15K· 9.32 mi
7:50/mi
1:14:46
↑ 67↓ 78
20K· 12.43 mi
7:59/mi
1:39:34
↑ 106↓ 860.1%
Half· 13.11 mi
8:05/mi
1:45:05
↑ 19↓ 370.5%
25K· 15.53 mi
9:01/mi
2:06:57
↑ 66↓ 880.2%
30K· 18.64 mi
11:55/mi
2:43:59
↑ 181↓ 1480.2%
20M
17:32/mi
3:07:48
↑ 64↓ 500.2%
21M
18:09/mi
3:25:57
↑ 106↓ 241.6%
35K· 21.75 mi
16:22/mi
3:38:12
↑ 17↓ 861.7%
23M
18:21/mi
4:01:11
↑ 23↓ 630.6%
24M
17:33/mi
4:18:44
↓ 821.3%
40K· 24.85 mi
17:48/mi
4:33:57
↓ 200.3%
25.2M
18:48/mi
4:40:26
↑ 13↓ 160.2%
Finish· 26.22 mi
16:57/mi
4:57:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:05
Pace8:01 /mi
2nd Half
Distance13.11 mi
Time3:12:37
Pace14:42 /mi
📊Positive Split: 83.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:3525:378:1525:37
8:15
-
10K
6.21 mi11:17:2450:268:0724:49
7:59
-0:16
15K
9.32 mi11:41:441:14:468:0124:20
7:50
-0:09
20K
12.43 mi12:06:321:39:348:0124:48
7:59
+0:09
Half
13.11 mi12:12:031:45:058:015:31
8:05
+0:06
25K
15.53 mi12:33:552:06:578:1021:52
9:01
+0:56
30K
18.64 mi13:10:572:43:598:4837:02
11:55
+2:54
20M
20.00 mi13:34:463:07:489:2323:49
17:32
+5:37
21M
21.00 mi13:52:553:25:579:4818:09
18:09
+0:37
35K
21.75 mi14:05:103:38:1210:0212:15
16:22
-1:47
23M
23.00 mi14:28:094:01:1110:2922:59
18:21
+1:59
24M
24.00 mi14:45:424:18:4410:4717:33
17:33
-0:48
40K
24.85 mi15:00:554:33:5711:0115:13
17:48
+0:15
25.2M
25.20 mi15:07:244:40:2611:086:29
18:48
+1:00
Finish
26.22 mi15:24:404:57:4211:2217:16
16:57
-1:51

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

7:50 /mi

Average Pace

11:22 /mi

Slowest Pace

18:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:59

55% of race

Time at Steady Pace

2:07:14

43% of race

Time at Slower Pace

6:29

2% of race

Average Pace: 11:21 /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 mi10:52:3525:378:1525:37
8:15
#16304
10K
6.21 mi11:17:2450:268:0724:49
7:59
#15220
15K
9.32 mi11:41:441:14:468:0124:20
7:50
#14204
20K
12.43 mi12:06:321:39:348:0124:48
7:59
#13516
Half
13.11 mi12:12:031:45:058:015:31
8:05
#13505
25K
15.53 mi12:33:552:06:578:1021:52
9:01
#13873
30K
18.64 mi13:10:572:43:598:4837:02
11:55
#16389
20M
20.00 mi13:34:463:07:489:2323:49
17:32
#18644
21M
21.00 mi13:52:553:25:579:4818:09
18:09
#19566
35K
21.75 mi14:05:103:38:1210:0212:15
16:22
#20094
23M
23.00 mi14:28:094:01:1110:2922:59
18:21
#21000
24M
24.00 mi14:45:424:18:4410:4717:33
17:33
#21543
40K
24.85 mi15:00:554:33:5711:0115:13
17:48
#21921
25.2M
25.20 mi15:07:244:40:2611:086:29
18:48
#22088
Finish
26.22 mi15:24:404:57:4211:2217:16
16:57
#22587
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi16304105261052612195(Top 48%)8816(Top 60%)8816(Top 397%)
10K6.21 mi3.10 mi15220+108410118+40810118+40814100(Top 55%)9670(Top 66%)9670(Top 436%)
15K9.32 mi3.11 mi14204+10169711+4079711+40712195(Top 48%)8816(Top 60%)8816(Top 397%)
20K12.43 mi3.11 mi13516+6889416+2959416+29511705(Top 46%)8517(Top 58%)8517(Top 384%)
Half13.11 mi0.68 mi13505+119408+89408+813293(Top 52%)9203(Top 63%)9203(Top 415%)
25K15.53 mi2.42 mi13873-3689520-1129520-11215594(Top 61%)10067(Top 69%)10067(Top 454%)
30K18.64 mi3.11 mi16389-251610446-92610446-92621792(Top 85%)12699(Top 87%)12699(Top 573%)
20M20.00 mi1.36 mi18644-225511401-95511401-95525422(Top 99%)14494(Top 99%)14494(Top 653%)
21M21.00 mi1.00 mi19566-92211802-40111802-40125301(Top 99%)14414(Top 99%)14414(Top 650%)
35K21.75 mi0.75 mi20094-52812039-23712039-23725244(Top 99%)14369(Top 99%)14369(Top 648%)
23M23.00 mi1.25 mi21000-90612428-38912428-38925434(Top 100%)14503(Top 99%)14503(Top 654%)
24M24.00 mi1.00 mi21543-54312660-23212660-23225376(Top 99%)14449(Top 99%)14449(Top 651%)
40K24.85 mi0.85 mi21921-37812835-17512835-17525322(Top 99%)14410(Top 99%)14410(Top 650%)
25.2M25.20 mi0.35 mi22088-16712909-7412909-7425202(Top 99%)14334(Top 98%)14334(Top 646%)
Finish26.22 mi1.02 mi22587-49913152-24313152-24325411(Top 99%)14468(Top 99%)14468(Top 652%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

12195

Males

8816

M45-49

8816

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

14100

Males

9670

M45-49

9670

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

12195

Males

8816

M45-49

8816

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

11705

Males

8517

M45-49

8517

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

13293

Males

9203

M45-49

9203

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

15594

Males

10067

M45-49

10067

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

21792

Males

12699

M45-49

12699

30K→20M

18.6 - 20.0 mi

Top 99%
×5story building
+64ft-50ft

Overall

25422

Males

14494

M45-49

14494

20M→21M

20.0 - 21.0 mi

Top 99%
×8story building
+106ft-24ft

Overall

25301

Males

14414

M45-49

14414

21M→35K

21.0 - 21.8 mi

Top 99%
×7story building
+17ft-86ft

Overall

25244

Males

14369

M45-49

14369

35K→23M

21.8 - 23.0 mi

Top 100%
×5story building
+23ft-63ft

Overall

25434

Males

14503

M45-49

14503

23M→24M

23.0 - 24.0 mi

Top 99%
×6story building
+12ft-82ft

Overall

25376

Males

14449

M45-49

14449

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

25322

Males

14410

M45-49

14410

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

25202

Males

14334

M45-49

14334

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2story building
+22ft-21ft

Overall

25411

Males

14468

M45-49

14468

Passing Analysis

Category:
Athletes Passed
3065
Passed By
9348
Net Change
-6283
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16304
5K → 10K112036+1084#16304#15220
10K → 15K10226+1016#15220#14204
15K → 20K70113+688#14204#13516
20K → Half4837+11#13516#13505
Half → 25K118486-368#13505#13873
25K → 30K122528-2516#13873#16389
30K → 20M32258-2255#16389#18644
20M → 21M5927-922#18644#19566
21M → 35K9537-528#19566#20094
35K → 23M4910-906#20094#21000
23M → 24M6549-543#21000#21543
24M → 40K6384-378#21543#21921
40K → 25.2M3170-167#21921#22088
25.2M → Finish8507-499#22088#22587
TOTALS30659348-6283
📊

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