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BOSTON MARATHON 2023

Scott Glasthal

Bib: 29695•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
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
30:27
Rank: #22922
Start → 5K
9:48/mi
30:27 split
10K· 6.21 mi
57:59
Rank: #21830 (+1092)
5K → 10K
8:52/mi
27:32 split
15K· 9.32 mi
1:26:09
Rank: #21509 (+321)
10K → 15K
9:04/mi
28:10 split
20K· 12.43 mi
1:55:56
Rank: #21604 (-95)
15K → 20K
9:35/mi
29:47 split
Half· 13.11 mi
2:02:42
Rank: #21700 (-96)
20K → Half
9:55/mi
6:46 split
25K· 15.53 mi
2:28:01
Rank: #21971 (-271)
Half → 25K
10:26/mi
25:19 split
30K· 18.64 mi
3:06:36
Rank: #22816 (-845)
25K → 30K
12:25/mi
38:35 split
20M
3:24:47
Rank: #23160 (-344)
30K → 20M
13:23/mi
18:11 split
21M
3:37:50
Rank: #23244 (-84)
20M → 21M
13:03/mi
13:03 split
35K· 21.75 mi
3:47:36
Rank: #23389 (-145)
21M → 35K
13:03/mi
9:46 split
23M
4:04:19
Rank: #23574 (-185)
35K → 23M
13:21/mi
16:43 split
24M
4:16:17
Rank: #23630 (-56)
23M → 24M
11:58/mi
11:58 split
40K· 24.85 mi
4:27:12
Rank: #23716 (-86)
24M → 40K
12:46/mi
10:55 split
25.2M
4:32:32
Rank: #23786 (-70)
40K → 25.2M
15:28/mi
5:20 split
Finish· 26.22 mi
4:43:30
Rank: #23785 (+1)
25.2M → Finish
10:46/mi
10:58 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:42
Pace9:22 /mi
2nd Half
Distance13.11 mi
Time2:40:48
Pace12:16 /mi
📊Positive Split: 31.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:3430:279:4830:27
9:48
-
10K
6.21 mi12:16:0657:599:2027:32
8:52
-0:56
15K
9.32 mi12:44:161:26:099:1528:10
9:04
+0:12
20K
12.43 mi13:14:031:55:569:2029:47
9:35
+0:31
Half
13.11 mi13:20:492:02:429:226:46
9:55
+0:20
25K
15.53 mi13:46:082:28:019:3225:19
10:26
+0:31
30K
18.64 mi14:24:433:06:3610:0138:35
12:25
+1:59
20M
20.00 mi14:42:543:24:4710:1418:11
13:23
+0:58
21M
21.00 mi14:55:573:37:5010:2213:03
13:03
-0:20
35K
21.75 mi15:05:433:47:3610:289:46
13:03
0:00
23M
23.00 mi15:22:264:04:1910:3716:43
13:21
+0:18
24M
24.00 mi15:34:244:16:1710:4111:58
11:58
-1:23
40K
24.85 mi15:45:194:27:1210:4510:55
12:46
+0:48
25.2M
25.20 mi15:50:394:32:3210:495:20
15:28
+2:42
Finish
26.22 mi16:01:374:43:3010:4910:58
10:46
-4:42

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

8:52 /mi

Average Pace

10:49 /mi

Slowest Pace

15:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:38:59

56% of race

Time at Steady Pace

1:01:28

22% of race

Time at Slower Pace

1:03:03

22% of race

Average Pace: 10:49 /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 mi11:48:3430:279:4830:27
9:48
#22922
10K
6.21 mi12:16:0657:599:2027:32
8:52
#21830
15K
9.32 mi12:44:161:26:099:1528:10
9:04
#21509
20K
12.43 mi13:14:031:55:569:2029:47
9:35
#21604
Half
13.11 mi13:20:492:02:429:226:46
9:55
#21700
25K
15.53 mi13:46:082:28:019:3225:19
10:26
#21971
30K
18.64 mi14:24:433:06:3610:0138:35
12:25
#22816
20M
20.00 mi14:42:543:24:4710:1418:11
13:23
#23160
21M
21.00 mi14:55:573:37:5010:2213:03
13:03
#23244
35K
21.75 mi15:05:433:47:3610:289:46
13:03
#23389
23M
23.00 mi15:22:264:04:1910:3716:43
13:21
#23574
24M
24.00 mi15:34:244:16:1710:4111:58
11:58
#23630
40K
24.85 mi15:45:194:27:1210:4510:55
12:46
#23716
25.2M
25.20 mi15:50:394:32:3210:495:20
15:28
#23786
Finish
26.22 mi16:01:374:43:3010:4910:58
10:46
#23785
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22922135591355920791(Top 78%)12655(Top 83%)12655(Top 239%)
10K6.21 mi3.10 mi21830+109213049+51013049+51020236(Top 76%)12380(Top 82%)12380(Top 234%)
15K9.32 mi3.11 mi21509+32112928+12112928+12120791(Top 78%)12655(Top 83%)12655(Top 239%)
20K12.43 mi3.11 mi21604-9512972-4412972-4421808(Top 82%)13102(Top 86%)13102(Top 248%)
Half13.11 mi0.68 mi21700-9613020-4813020-4823111(Top 87%)13679(Top 90%)13679(Top 259%)
25K15.53 mi2.42 mi21971-27113139-11913139-11923077(Top 87%)13619(Top 90%)13619(Top 258%)
30K18.64 mi3.11 mi22816-84513505-36613505-36624924(Top 94%)14374(Top 95%)14374(Top 272%)
20M20.00 mi1.36 mi23160-34413662-15713662-15725460(Top 96%)14604(Top 96%)14604(Top 276%)
21M21.00 mi1.00 mi23244-8413692-3013692-3024131(Top 91%)13947(Top 92%)13947(Top 264%)
35K21.75 mi0.75 mi23389-14513753-6113753-6125592(Top 96%)14629(Top 96%)14629(Top 277%)
23M23.00 mi1.25 mi23574-18513843-9013843-9025401(Top 95%)14529(Top 96%)14529(Top 275%)
24M24.00 mi1.00 mi23630-5613851-813851-824474(Top 92%)14034(Top 92%)14034(Top 266%)
40K24.85 mi0.85 mi23716-8613883-3213883-3224741(Top 93%)14176(Top 93%)14176(Top 268%)
25.2M25.20 mi0.35 mi23786-7013910-2713910-2725916(Top 97%)14760(Top 97%)14760(Top 279%)
Finish26.22 mi1.02 mi23785+113905+513905+523528(Top 88%)13586(Top 90%)13586(Top 257%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

20791

Males

12655

M18-39

12655

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

20236

Males

12380

M18-39

12380

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

20791

Males

12655

M18-39

12655

15K→20K

9.3 - 12.4 mi

Top 82%
×5story building
+106ft-86ft

Overall

21808

Males

13102

M18-39

13102

20K→Half

12.4 - 13.1 mi

Top 87%
×2story building
+19ft-37ft

Overall

23111

Males

13679

M18-39

13679

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

23077

Males

13619

M18-39

13619

25K→30K

15.5 - 18.6 mi

Top 94%
×9story building
+181ft-148ft

Overall

24924

Males

14374

M18-39

14374

30K→20M

18.6 - 20.0 mi

Top 96%
×5story building
+64ft-50ft

Overall

25460

Males

14604

M18-39

14604

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

24131

Males

13947

M18-39

13947

21M→35K

21.0 - 21.8 mi

Top 96%
×7story building
+17ft-86ft

Overall

25592

Males

14629

M18-39

14629

35K→23M

21.8 - 23.0 mi

Top 95%
×5story building
+23ft-63ft

Overall

25401

Males

14529

M18-39

14529

23M→24M

23.0 - 24.0 mi

Top 92%
×6story building
+12ft-82ft

Overall

24474

Males

14034

M18-39

14034

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

24741

Males

14176

M18-39

14176

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

25916

Males

14760

M18-39

14760

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2story building
+22ft-21ft

Overall

23528

Males

13586

M18-39

13586

Passing Analysis

Category:
Athletes Passed
1717
Passed By
2580
Net Change
-863
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22922
5K → 10K110816+1092#22922#21830
10K → 15K37049+321#21830#21509
15K → 20K85180-95#21509#21604
20K → Half6102-96#21604#21700
Half → 25K41312-271#21700#21971
25K → 30K10855-845#21971#22816
30K → 20M13357-344#22816#23160
20M → 21M19103-84#23160#23244
21M → 35K6151-145#23244#23389
35K → 23M12197-185#23389#23574
23M → 24M1773-56#23574#23630
24M → 40K995-86#23630#23716
40K → 25.2M272-70#23716#23786
25.2M → Finish1918+1#23786#23785
TOTALS17172580-863
📊

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