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BOSTON MARATHON 2023

Jason Strack

Bib: 5159•M

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 50%
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:35
Rank: #7931
Start → 5K
22:35 | 7:16/mi
10K· 6.21 mi
45:44
Rank: #8891 (-960)
5K → 10K
23:09 | 7:27/mi
15K· 9.32 mi
1:09:21
Rank: #9528 (-637)
10K → 15K
23:37 | 7:36/mi
20K· 12.43 mi
1:33:30
Rank: #10039 (-511)
15K → 20K
24:09 | 7:46/mi
Half· 13.11 mi
1:38:44
Rank: #10119 (-80)
20K → Half
5:14 | 7:40/mi
25K· 15.53 mi
1:58:00
Rank: #10449 (-330)
Half → 25K
19:16 | 7:57/mi
30K· 18.64 mi
2:23:55
Rank: #10923 (-474)
25K → 30K
25:55 | 8:21/mi
20M
2:35:23
Rank: #11090 (-167)
30K → 20M
11:28 | 8:26/mi
21M
2:44:23
Rank: #11236 (-146)
20M → 21M
9:00 | 9:00/mi
35K· 21.75 mi
2:51:37
Rank: #11780 (-544)
21M → 35K
7:14 | 9:40/mi
23M
3:03:23
Rank: #12244 (-464)
35K → 23M
11:46 | 9:24/mi
24M
3:13:03
Rank: #12710 (-466)
23M → 24M
9:40 | 9:40/mi
40K· 24.85 mi
3:20:59
Rank: #12921 (-211)
24M → 40K
7:56 | 9:17/mi
25.2M
3:24:47
Rank: #13086 (-165)
40K → 25.2M
3:48 | 11:01/mi
Finish· 26.22 mi
3:33:41
Rank: #13243 (-157)
25.2M → Finish
8:54 | 8:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:44
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:54:57
Pace8:46 /mi
📊Positive Split: 16.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:1922:357:1622:35
7:16
-
10K
6.21 mi10:48:2845:447:2223:09
7:27
+0:11
15K
9.32 mi11:12:051:09:217:2623:37
7:36
+0:09
20K
12.43 mi11:36:141:33:307:3124:09
7:46
+0:10
Half
13.11 mi11:41:281:38:447:325:14
7:40
-0:06
25K
15.53 mi12:00:441:58:007:3619:16
7:57
+0:17
30K
18.64 mi12:26:392:23:557:4325:55
8:21
+0:24
20M
20.00 mi12:38:072:35:237:4611:28
8:26
+0:05
21M
21.00 mi12:47:072:44:237:509:00
9:00
+0:34
35K
21.75 mi12:54:212:51:377:537:14
9:40
+0:40
23M
23.00 mi13:06:073:03:237:5811:46
9:24
-0:16
24M
24.00 mi13:15:473:13:038:039:40
9:40
+0:16
40K
24.85 mi13:23:433:20:598:057:56
9:17
-0:23
25.2M
25.20 mi13:27:313:24:478:083:48
11:01
+1:44
Finish
26.22 mi13:36:253:33:418:098:54
8:44
-2:17

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

7:16 /mi

Average Pace

8:09 /mi

Slowest Pace

11:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:44

46% of race

Time at Steady Pace

1:05:33

31% of race

Time at Slower Pace

49:24

23% of race

Average Pace: 8:09 /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 mi10:25:1922:357:1622:35
7:16
#7931
10K
6.21 mi10:48:2845:447:2223:09
7:27
#8891
15K
9.32 mi11:12:051:09:217:2623:37
7:36
#9528
20K
12.43 mi11:36:141:33:307:3124:09
7:46
#10039
Half
13.11 mi11:41:281:38:447:325:14
7:40
#10119
25K
15.53 mi12:00:441:58:007:3619:16
7:57
#10449
30K
18.64 mi12:26:392:23:557:4325:55
8:21
#10923
20M
20.00 mi12:38:072:35:237:4611:28
8:26
#11090
21M
21.00 mi12:47:072:44:237:509:00
9:00
#11236
35K
21.75 mi12:54:212:51:377:537:14
9:40
#11780
23M
23.00 mi13:06:073:03:237:5811:46
9:24
#12244
24M
24.00 mi13:15:473:13:038:039:40
9:40
#12710
40K
24.85 mi13:23:433:20:598:057:56
9:17
#12921
25.2M
25.20 mi13:27:313:24:478:083:48
11:01
#13086
Finish
26.22 mi13:36:253:33:418:098:54
8:44
#13243
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi79316929692911023(Top 41%)8652(Top 57%)8652(Top 164%)
10K6.21 mi3.10 mi8891-9607514-5857514-58510080(Top 38%)8211(Top 54%)8211(Top 155%)
15K9.32 mi3.11 mi9528-6377887-3737887-37311023(Top 41%)8652(Top 57%)8652(Top 164%)
20K12.43 mi3.11 mi10039-5118183-2968183-29611502(Top 43%)8805(Top 58%)8805(Top 167%)
Half13.11 mi0.68 mi10119-808213-308213-3011610(Top 44%)8923(Top 59%)8923(Top 169%)
25K15.53 mi2.42 mi10449-3308363-1508363-15012273(Top 46%)9024(Top 59%)9024(Top 171%)
30K18.64 mi3.11 mi10923-4748550-1878550-18713299(Top 50%)9364(Top 62%)9364(Top 177%)
20M20.00 mi1.36 mi11090-1678593-438593-4313234(Top 50%)9235(Top 61%)9235(Top 175%)
21M21.00 mi1.00 mi11236-1468633-408633-4013390(Top 50%)9221(Top 61%)9221(Top 174%)
35K21.75 mi0.75 mi11780-5448861-2288861-22820349(Top 76%)12181(Top 80%)12181(Top 230%)
23M23.00 mi1.25 mi12244-4649035-1749035-17417914(Top 67%)11072(Top 73%)11072(Top 209%)
24M24.00 mi1.00 mi12710-4669216-1819216-18119755(Top 74%)11889(Top 78%)11889(Top 225%)
40K24.85 mi0.85 mi12921-2119279-639279-6317400(Top 65%)10749(Top 71%)10749(Top 203%)
25.2M25.20 mi0.35 mi13086-1659336-579336-5720460(Top 77%)12127(Top 80%)12127(Top 229%)
Finish26.22 mi1.02 mi13243-1579380-449380-4416641(Top 63%)10440(Top 69%)10440(Top 198%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

11023

Males

8652

M18-39

8652

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10080

Males

8211

M18-39

8211

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

11023

Males

8652

M18-39

8652

15K→20K

9.3 - 12.4 mi

Top 43%
×5stories
+106ft-86ft

Overall

11502

Males

8805

M18-39

8805

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

11610

Males

8923

M18-39

8923

Half→25K

13.1 - 15.5 mi

Top 46%
×4stories
+66ft-88ft

Overall

12273

Males

9024

M18-39

9024

25K→30K

15.5 - 18.6 mi

Top 50%
×9stories
+181ft-148ft

Overall

13299

Males

9364

M18-39

9364

30K→20M

18.6 - 20.0 mi

Top 50%
×5stories
+64ft-50ft

Overall

13234

Males

9235

M18-39

9235

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

13390

Males

9221

M18-39

9221

21M→35K

21.0 - 21.8 mi

Top 76%
×7stories
+17ft-86ft

Overall

20349

Males

12181

M18-39

12181

35K→23M

21.8 - 23.0 mi

Top 67%
×5stories
+23ft-63ft

Overall

17914

Males

11072

M18-39

11072

23M→24M

23.0 - 24.0 mi

Top 74%
×6stories
+12ft-82ft

Overall

19755

Males

11889

M18-39

11889

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17400

Males

10749

M18-39

10749

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

20460

Males

12127

M18-39

12127

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

16641

Males

10440

M18-39

10440

Passing Analysis

Category:
Athletes Passed
416*
Passed By
5726
Net Change
-5312
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7931
5K → 10K24984-960#7931#8891
10K → 15K32669-637#8891#9528
15K → 20K52562-511#9528#10039
20K → Half988-80#10039#10119
Half → 25K50380-330#10119#10449
25K → 30K66540-474#10449#10923
30K → 20M47*214-167#10923#11090
20M → 21M50196-146#11090#11236
21M → 35K3547-544#11236#11780
35K → 23M22486-464#11780#12244
23M → 24M9475-466#12244#12710
24M → 40K24235-211#12710#12921
40K → 25.2M9174-165#12921#13086
25.2M → Finish19176-157#13086#13243
TOTALS416*5726-5312

* 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