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BOSTON MARATHON 2024

David Szostak

Bib: 6218•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 39%
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Top 41%
Division (M45-49)
#0 / 2218
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:43
Rank: #9256
Start → 5K
22:43 | 7:19/mi
10K· 6.21 mi
45:43
Rank: #9316 (-60)
5K → 10K
23:00 | 7:24/mi
15K· 9.32 mi
1:08:47
Rank: #9182 (+134)
10K → 15K
23:04 | 7:25/mi
20K· 12.43 mi
1:32:31
Rank: #9206 (-24)
15K → 20K
23:44 | 7:38/mi
Half· 13.11 mi
1:37:44
Rank: #9247 (-41)
20K → Half
5:13 | 7:39/mi
25K· 15.53 mi
1:57:08
Rank: #9357 (-110)
Half → 25K
19:24 | 8:00/mi
30K· 18.64 mi
2:24:16
Rank: #9820 (-463)
25K → 30K
27:08 | 8:44/mi
20M
2:36:10
Rank: #9840 (-20)
30K → 20M
11:54 | 8:45/mi
21M
2:46:07
Rank: #10016 (-176)
20M → 21M
9:57 | 9:57/mi
35K· 21.75 mi
2:52:25
Rank: #9988 (+28)
21M → 35K
6:18 | 8:25/mi
23M
3:03:37
Rank: #10007 (-19)
35K → 23M
11:12 | 8:57/mi
24M
3:12:13
Rank: #9973 (+34)
23M → 24M
8:36 | 8:36/mi
40K· 24.85 mi
3:19:36
Rank: #9927 (+46)
24M → 40K
7:23 | 8:38/mi
25.2M
3:23:05
Rank: #9931 (-4)
40K → 25.2M
3:29 | 10:06/mi
Finish· 26.22 mi
3:31:56
Rank: #10023 (-92)
25.2M → Finish
8:51 | 8:41/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:44
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:54:12
Pace8:43 /mi
📊Positive Split: 16.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:2122:437:1922:43
7:19
-
10K
6.21 mi10:51:2145:437:2123:00
7:24
+0:05
15K
9.32 mi11:14:251:08:477:2323:04
7:25
+0:01
20K
12.43 mi11:38:091:32:317:2723:44
7:38
+0:13
Half
13.11 mi11:43:221:37:447:275:13
7:39
+0:01
25K
15.53 mi12:02:461:57:087:3219:24
8:00
+0:21
30K
18.64 mi12:29:542:24:167:4427:08
8:44
+0:44
20M
20.00 mi12:41:482:36:107:4811:54
8:45
+0:01
21M
21.00 mi12:51:452:46:077:559:57
9:57
+1:12
35K
21.75 mi12:58:032:52:257:566:18
8:25
-1:32
23M
23.00 mi13:09:153:03:377:5911:12
8:57
+0:32
24M
24.00 mi13:17:513:12:138:018:36
8:36
-0:21
40K
24.85 mi13:25:143:19:368:027:23
8:38
+0:02
25.2M
25.20 mi13:28:433:23:058:043:29
10:06
+1:28
Finish
26.22 mi13:37:343:31:568:058:51
8:41
-1:25

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

7:19 /mi

Average Pace

8:05 /mi

Slowest Pace

10:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:08

55% of race

Time at Steady Pace

1:21:22

38% of race

Time at Slower Pace

13:26

6% of race

Average Pace: 8:05 /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 mi10:28:2122:437:1922:43
7:19
#9256
10K
6.21 mi10:51:2145:437:2123:00
7:24
#9316
15K
9.32 mi11:14:251:08:477:2323:04
7:25
#9182
20K
12.43 mi11:38:091:32:317:2723:44
7:38
#9206
Half
13.11 mi11:43:221:37:447:275:13
7:39
#9247
25K
15.53 mi12:02:461:57:087:3219:24
8:00
#9357
30K
18.64 mi12:29:542:24:167:4427:08
8:44
#9820
20M
20.00 mi12:41:482:36:107:4811:54
8:45
#9840
21M
21.00 mi12:51:452:46:077:559:57
9:57
#10016
35K
21.75 mi12:58:032:52:257:566:18
8:25
#9988
23M
23.00 mi13:09:153:03:377:5911:12
8:57
#10007
24M
24.00 mi13:17:513:12:138:018:36
8:36
#9973
40K
24.85 mi13:25:143:19:368:027:23
8:38
#9927
25.2M
25.20 mi13:28:433:23:058:043:29
10:06
#9931
Finish
26.22 mi13:37:343:31:568:058:51
8:41
#10023
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi9256755775579061(Top 35%)7323(Top 50%)7323(Top 330%)
10K6.21 mi3.10 mi9316-607552+57552+59443(Top 37%)7574(Top 52%)7574(Top 341%)
15K9.32 mi3.11 mi9182+1347459+937459+939061(Top 35%)7323(Top 50%)7323(Top 330%)
20K12.43 mi3.11 mi9206-247423+367423+369325(Top 36%)7327(Top 50%)7327(Top 330%)
Half13.11 mi0.68 mi9247-417442-197442-1910146(Top 40%)7746(Top 53%)7746(Top 349%)
25K15.53 mi2.42 mi9357-1107457-157457-1510183(Top 40%)7590(Top 52%)7590(Top 342%)
30K18.64 mi3.11 mi9820-4637576-1197576-11911860(Top 46%)8172(Top 56%)8172(Top 368%)
20M20.00 mi1.36 mi9840-207524+527524+5210846(Top 42%)7430(Top 51%)7430(Top 335%)
21M21.00 mi1.00 mi10016-1767553-297553-2912748(Top 50%)8059(Top 55%)8059(Top 363%)
35K21.75 mi0.75 mi9988+287506+477506+4710240(Top 40%)6857(Top 47%)6857(Top 309%)
23M23.00 mi1.25 mi10007-197447+597447+5910863(Top 43%)7002(Top 48%)7002(Top 316%)
24M24.00 mi1.00 mi9973+347394+537394+5310026(Top 39%)6554(Top 45%)6554(Top 295%)
40K24.85 mi0.85 mi9927+467332+627332+629036(Top 35%)5915(Top 41%)5915(Top 267%)
25.2M25.20 mi0.35 mi9931-47315+177315+1711299(Top 44%)7033(Top 48%)7033(Top 317%)
Finish26.22 mi1.02 mi10023-927309+67309+612521(Top 49%)7754(Top 53%)7754(Top 350%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

9061

Males

7323

M45-49

7323

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

9443

Males

7574

M45-49

7574

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

9061

Males

7323

M45-49

7323

15K→20K

9.3 - 12.4 mi

Top 36%
×5stories
+106ft-86ft

Overall

9325

Males

7327

M45-49

7327

20K→Half

12.4 - 13.1 mi

Top 40%
×2stories
+19ft-37ft

Overall

10146

Males

7746

M45-49

7746

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

10183

Males

7590

M45-49

7590

25K→30K

15.5 - 18.6 mi

Top 46%
×9stories
+181ft-148ft

Overall

11860

Males

8172

M45-49

8172

30K→20M

18.6 - 20.0 mi

Top 42%
×5stories
+64ft-50ft

Overall

10846

Males

7430

M45-49

7430

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

12748

Males

8059

M45-49

8059

21M→35K

21.0 - 21.8 mi

Top 40%
×7stories
+17ft-86ft

Overall

10240

Males

6857

M45-49

6857

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

10863

Males

7002

M45-49

7002

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

10026

Males

6554

M45-49

6554

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9036

Males

5915

M45-49

5915

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11299

Males

7033

M45-49

7033

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

12521

Males

7754

M45-49

7754

Passing Analysis

Category:
Athletes Passed
1767*
Passed By
2528
Net Change
-767
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9256
5K → 10K220280-60#9256#9316
10K → 15K242108+134#9316#9182
15K → 20K198222-24#9182#9206
20K → Half2667-41#9206#9247
Half → 25K168278-110#9247#9357
25K → 30K141603-463#9357#9820
30K → 20M149168-20#9820#9840
20M → 21M75249-176#9840#10016
21M → 35K91*63+28#10016#9988
35K → 23M142160-19#9988#10007
23M → 24M106*72+34#10007#9973
24M → 40K10862+46#9973#9927
40K → 25.2M4347-4#9927#9931
25.2M → Finish58149-92#9931#10023
TOTALS1767*2528-767

* 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