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BOSTON MARATHON 2023

Seth Marek

Bib: 4234•M

NE

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 12%
Division (M18-39)
#0 / 5285
Top 27%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:23
Rank: #2603
Start → 5K
20:23 | 6:34/mi
10K· 6.21 mi
40:34
Rank: #2672 (-69)
5K → 10K
20:11 | 6:30/mi
15K· 9.32 mi
1:00:44
Rank: #2620 (+52)
10K → 15K
20:10 | 6:29/mi
20K· 12.43 mi
1:21:19
Rank: #2691 (-71)
15K → 20K
20:35 | 6:38/mi
Half· 13.11 mi
1:25:41
Rank: #2657 (+34)
20K → Half
4:22 | 6:24/mi
25K· 15.53 mi
1:41:19
Rank: #2527 (+130)
Half → 25K
15:38 | 6:27/mi
30K· 18.64 mi
2:01:53
Rank: #2414 (+113)
25K → 30K
20:34 | 6:37/mi
20M
2:10:50
Rank: #2347 (+67)
30K → 20M
8:57 | 6:35/mi
21M
2:17:53
Rank: #2318 (+29)
20M → 21M
7:03 | 7:03/mi
35K· 21.75 mi
2:22:26
Rank: #2247 (+71)
21M → 35K
4:33 | 6:05/mi
23M
2:30:27
Rank: #2142 (+105)
35K → 23M
8:01 | 6:24/mi
24M
2:36:41
Rank: #2056 (+86)
23M → 24M
6:14 | 6:14/mi
40K· 24.85 mi
2:42:04
Rank: #1984 (+72)
24M → 40K
5:23 | 6:18/mi
25.2M
2:44:25
Rank: #1953 (+31)
40K → 25.2M
2:21 | 6:49/mi
Finish· 26.22 mi
2:50:35
Rank: #1878 (+75)
25.2M → Finish
6:10 | 6:03/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:25:41
Pace6:32 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:24:54
Pace6:29 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:3420:236:3420:23
6:34
-
10K
6.21 mi10:42:4540:346:3220:11
6:30
-0:04
15K
9.32 mi11:02:551:00:446:3120:10
6:29
-0:01
20K
12.43 mi11:23:301:21:196:3320:35
6:38
+0:09
Half
13.11 mi11:27:521:25:416:324:22
6:24
-0:14
25K
15.53 mi11:43:301:41:196:3115:38
6:27
+0:03
30K
18.64 mi12:04:042:01:536:3220:34
6:37
+0:10
20M
20.00 mi12:13:012:10:506:328:57
6:35
-0:02
21M
21.00 mi12:20:042:17:536:347:03
7:03
+0:28
35K
21.75 mi12:24:372:22:266:334:33
6:05
-0:58
23M
23.00 mi12:32:382:30:276:328:01
6:24
+0:19
24M
24.00 mi12:38:522:36:416:326:14
6:14
-0:10
40K
24.85 mi12:44:152:42:046:315:23
6:18
+0:04
25.2M
25.20 mi12:46:362:44:256:312:21
6:49
+0:31
Finish
26.22 mi12:52:462:50:356:316:10
6:03
-0:46

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

6:03 /mi

Average Pace

6:31 /mi

Slowest Pace

7:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:11

94% of race

Time at Steady Pace

9:24

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:30 /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 mi10:22:3420:236:3420:23
6:34
#2603
10K
6.21 mi10:42:4540:346:3220:11
6:30
#2672
15K
9.32 mi11:02:551:00:446:3120:10
6:29
#2620
20K
12.43 mi11:23:301:21:196:3320:35
6:38
#2691
Half
13.11 mi11:27:521:25:416:324:22
6:24
#2657
25K
15.53 mi11:43:301:41:196:3115:38
6:27
#2527
30K
18.64 mi12:04:042:01:536:3220:34
6:37
#2414
20M
20.00 mi12:13:012:10:506:328:57
6:35
#2347
21M
21.00 mi12:20:042:17:536:347:03
7:03
#2318
35K
21.75 mi12:24:372:22:266:334:33
6:05
#2247
23M
23.00 mi12:32:382:30:276:328:01
6:24
#2142
24M
24.00 mi12:38:522:36:416:326:14
6:14
#2056
40K
24.85 mi12:44:152:42:046:315:23
6:18
#1984
25.2M
25.20 mi12:46:362:44:256:312:21
6:49
#1953
Finish
26.22 mi12:52:462:50:356:316:10
6:03
#1878
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2603248024802578(Top 10%)2473(Top 16%)2473(Top 47%)
10K6.21 mi3.10 mi2672-692550-702550-702753(Top 10%)2631(Top 17%)2631(Top 50%)
15K9.32 mi3.11 mi2620+522501+492501+492578(Top 10%)2473(Top 16%)2473(Top 47%)
20K12.43 mi3.11 mi2691-712570-692570-692993(Top 11%)2849(Top 19%)2849(Top 54%)
Half13.11 mi0.68 mi2657+342539+312539+312197(Top 8%)2107(Top 14%)2107(Top 40%)
25K15.53 mi2.42 mi2527+1302419+1202419+1201939(Top 7%)1856(Top 12%)1856(Top 35%)
30K18.64 mi3.11 mi2414+1132313+1062313+1062035(Top 8%)1944(Top 13%)1944(Top 37%)
20M20.00 mi1.36 mi2347+672250+632250+631796(Top 7%)1712(Top 11%)1712(Top 32%)
21M21.00 mi1.00 mi2318+292221+292221+292358(Top 9%)2227(Top 15%)2227(Top 42%)
35K21.75 mi0.75 mi2247+712153+682153+68900(Top 3%)857(Top 6%)857(Top 16%)
23M23.00 mi1.25 mi2142+1052053+1002053+1001120(Top 4%)1060(Top 7%)1060(Top 20%)
24M24.00 mi1.00 mi2056+861972+811972+811140(Top 4%)1081(Top 7%)1081(Top 20%)
40K24.85 mi0.85 mi1984+721900+721900+72904(Top 3%)857(Top 6%)857(Top 16%)
25.2M25.20 mi0.35 mi1953+311869+311869+311212(Top 5%)1151(Top 8%)1151(Top 22%)
Finish26.22 mi1.02 mi1878+751795+741795+74865(Top 3%)829(Top 5%)829(Top 16%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2578

Males

2473

M18-39

2473

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2753

Males

2631

M18-39

2631

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2578

Males

2473

M18-39

2473

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

2993

Males

2849

M18-39

2849

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2197

Males

2107

M18-39

2107

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1939

Males

1856

M18-39

1856

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2035

Males

1944

M18-39

1944

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1796

Males

1712

M18-39

1712

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2358

Males

2227

M18-39

2227

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

900

Males

857

M18-39

857

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1120

Males

1060

M18-39

1060

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1140

Males

1081

M18-39

1081

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

904

Males

857

M18-39

857

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1212

Males

1151

M18-39

1151

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

865

Males

829

M18-39

829

Passing Analysis

Category:
Athletes Passed
1142
Passed By
417
Net Change
+725
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2603
5K → 10K115184-69#2603#2672
10K → 15K10452+52#2672#2620
15K → 20K47118-71#2620#2691
20K → Half351+34#2691#2657
Half → 25K1388+130#2657#2527
25K → 30K13522+113#2527#2414
30K → 20M736+67#2414#2347
20M → 21M4415+29#2347#2318
21M → 35K710+71#2318#2247
35K → 23M1072+105#2247#2142
23M → 24M871+86#2142#2056
24M → 40K731+72#2056#1984
40K → 25.2M343+31#1984#1953
25.2M → Finish794+75#1953#1878
TOTALS1142417+725
📊

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