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BOSTON MARATHON 2023

Sean Gossen

Bib: 1202•M

LA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 19%
Gender (Male)
#0 / 15176
Top 31%
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
17:59
Rank: #373
Start → 5K
17:59 | 5:47/mi
10K· 6.21 mi
35:46
Rank: #358 (+15)
5K → 10K
17:47 | 5:43/mi
15K· 9.32 mi
53:40
Rank: #341 (+17)
10K → 15K
17:54 | 5:46/mi
20K· 12.43 mi
1:12:43
Rank: #421 (-80)
15K → 20K
19:03 | 6:08/mi
Half· 13.11 mi
1:16:53
Rank: #436 (-15)
20K → Half
4:10 | 6:06/mi
25K· 15.53 mi
1:34:38
Rank: #849 (-413)
Half → 25K
17:45 | 7:19/mi
30K· 18.64 mi
1:56:24
Rank: #1158 (-309)
25K → 30K
21:46 | 7:00/mi
20M
2:06:31
Rank: #1383 (-225)
30K → 20M
10:07 | 7:27/mi
21M
2:14:40
Rank: #1624 (-241)
20M → 21M
8:09 | 8:09/mi
35K· 21.75 mi
2:20:55
Rank: #1913 (-289)
21M → 35K
6:15 | 8:21/mi
23M
2:32:32
Rank: #2535 (-622)
35K → 23M
11:37 | 9:17/mi
24M
2:42:37
Rank: #3523 (-988)
23M → 24M
10:05 | 10:05/mi
40K· 24.85 mi
2:52:46
Rank: #4782 (-1259)
24M → 40K
10:09 | 11:52/mi
25.2M
2:56:15
Rank: #4964 (-182)
40K → 25.2M
3:29 | 10:06/mi
Finish· 26.22 mi
3:04:24
Rank: #5136 (-172)
25.2M → Finish
8:09 | 8:00/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:16:53
Pace5:52 /mi
2nd Half
Distance13.11 mi
Time1:47:31
Pace8:12 /mi
📊Positive Split: 39.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:1417:595:4717:59
5:47
-
10K
6.21 mi10:36:0135:465:4517:47
5:43
-0:04
15K
9.32 mi10:53:5553:405:4517:54
5:46
+0:03
20K
12.43 mi11:12:581:12:435:5119:03
6:08
+0:22
Half
13.11 mi11:17:081:16:535:524:10
6:06
-0:02
25K
15.53 mi11:34:531:34:386:0617:45
7:19
+1:13
30K
18.64 mi11:56:391:56:246:1521:46
7:00
-0:19
20M
20.00 mi12:06:462:06:316:2010:07
7:27
+0:27
21M
21.00 mi12:14:552:14:406:258:09
8:09
+0:42
35K
21.75 mi12:21:102:20:556:296:15
8:21
+0:12
23M
23.00 mi12:32:472:32:326:3811:37
9:17
+0:56
24M
24.00 mi12:42:522:42:376:4710:05
10:05
+0:48
40K
24.85 mi12:53:012:52:466:5710:09
11:52
+1:47
25.2M
25.20 mi12:56:302:56:157:003:29
10:06
-1:46
Finish
26.22 mi13:04:393:04:247:028:09
8:00
-2:06

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

5:43 /mi

Average Pace

7:02 /mi

Slowest Pace

11:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:16:53

42% of race

Time at Steady Pace

1:12:11

39% of race

Time at Slower Pace

35:20

19% of race

Average Pace: 7:02 /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 mi10:18:1417:595:4717:59
5:47
#373
10K
6.21 mi10:36:0135:465:4517:47
5:43
#358
15K
9.32 mi10:53:5553:405:4517:54
5:46
#341
20K
12.43 mi11:12:581:12:435:5119:03
6:08
#421
Half
13.11 mi11:17:081:16:535:524:10
6:06
#436
25K
15.53 mi11:34:531:34:386:0617:45
7:19
#849
30K
18.64 mi11:56:391:56:246:1521:46
7:00
#1158
20M
20.00 mi12:06:462:06:316:2010:07
7:27
#1383
21M
21.00 mi12:14:552:14:406:258:09
8:09
#1624
35K
21.75 mi12:21:102:20:556:296:15
8:21
#1913
23M
23.00 mi12:32:472:32:326:3811:37
9:17
#2535
24M
24.00 mi12:42:522:42:376:4710:05
10:05
#3523
40K
24.85 mi12:53:012:52:466:5710:09
11:52
#4782
25.2M
25.20 mi12:56:302:56:157:003:29
10:06
#4964
Finish
26.22 mi13:04:393:04:247:028:09
8:00
#5136
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi373339339336(Top 1%)303(Top 2%)303(Top 6%)
10K6.21 mi3.10 mi358+15324+15324+15345(Top 1%)311(Top 2%)311(Top 6%)
15K9.32 mi3.11 mi341+17308+16308+16336(Top 1%)303(Top 2%)303(Top 6%)
20K12.43 mi3.11 mi421-80386-78386-78872(Top 3%)827(Top 5%)827(Top 16%)
Half13.11 mi0.68 mi436-15401-15401-151078(Top 4%)1030(Top 7%)1030(Top 19%)
25K15.53 mi2.42 mi849-413802-401802-4017398(Top 28%)6410(Top 42%)6410(Top 121%)
30K18.64 mi3.11 mi1158-3091105-3031105-3034388(Top 16%)4076(Top 27%)4076(Top 77%)
20M20.00 mi1.36 mi1383-2251321-2161321-2166402(Top 24%)5571(Top 37%)5571(Top 105%)
21M21.00 mi1.00 mi1624-2411553-2321553-2328253(Top 31%)6605(Top 44%)6605(Top 125%)
35K21.75 mi0.75 mi1913-2891832-2791832-27914374(Top 54%)9569(Top 63%)9569(Top 181%)
23M23.00 mi1.25 mi2535-6222424-5922424-59217388(Top 65%)10864(Top 72%)10864(Top 206%)
24M24.00 mi1.00 mi3523-9883329-9053329-90521006(Top 79%)12428(Top 82%)12428(Top 235%)
40K24.85 mi0.85 mi4782-12594428-10994428-109923711(Top 89%)13643(Top 90%)13643(Top 258%)
25.2M25.20 mi0.35 mi4964-1824571-1434571-14317698(Top 66%)10857(Top 72%)10857(Top 205%)
Finish26.22 mi1.02 mi5136-1724705-1344705-13412062(Top 45%)8297(Top 55%)8297(Top 157%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
×21stories
+97ft-345ft

Overall

336

Males

303

M18-39

303

5K→10K

3.1 - 6.2 mi

Top 1%
×5stories
+79ft-138ft

Overall

345

Males

311

M18-39

311

10K→15K

6.2 - 9.3 mi

Top 1%
×3stories
+67ft-78ft

Overall

336

Males

303

M18-39

303

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

872

Males

827

M18-39

827

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1078

Males

1030

M18-39

1030

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

7398

Males

6410

M18-39

6410

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4388

Males

4076

M18-39

4076

30K→20M

18.6 - 20.0 mi

Top 24%
×5stories
+64ft-50ft

Overall

6402

Males

5571

M18-39

5571

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8253

Males

6605

M18-39

6605

21M→35K

21.0 - 21.8 mi

Top 54%
×7stories
+17ft-86ft

Overall

14374

Males

9569

M18-39

9569

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

17388

Males

10864

M18-39

10864

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

21006

Males

12428

M18-39

12428

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

23711

Males

13643

M18-39

13643

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

17698

Males

10857

M18-39

10857

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2stories
+22ft-21ft

Overall

12062

Males

8297

M18-39

8297

Passing Analysis

Category:
Athletes Passed
69
Passed By
4832
Net Change
-4763
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#373
5K → 10K2712+15#373#358
10K → 15K214+17#358#341
15K → 20K383-80#341#421
20K → Half116-15#421#436
Half → 25K0413-413#436#849
25K → 30K3312-309#849#1158
30K → 20M1226-225#1158#1383
20M → 21M0241-241#1383#1624
21M → 35K0289-289#1624#1913
35K → 23M2624-622#1913#2535
23M → 24M0988-988#2535#3523
24M → 40K21261-1259#3523#4782
40K → 25.2M0182-182#4782#4964
25.2M → Finish9181-172#4964#5136
TOTALS694832-4763
📊

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