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BOSTON MARATHON 2023

Scott Day

Bib: 4295•M

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Overall
#0 / 26622
Top 25%
Gender (Male)
#0 / 15176
Top 39%
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
20:09
Rank: #2217
Start → 5K
20:09 | 6:29/mi
10K· 6.21 mi
39:53
Rank: #2093 (+124)
5K → 10K
19:44 | 6:21/mi
15K· 9.32 mi
1:00:09
Rank: #2282 (-189)
10K → 15K
20:16 | 6:31/mi
20K· 12.43 mi
1:20:49
Rank: #2469 (-187)
15K → 20K
20:40 | 6:39/mi
Half· 13.11 mi
1:25:18
Rank: #2498 (-29)
20K → Half
4:29 | 6:34/mi
25K· 15.53 mi
1:42:05
Rank: #2805 (-307)
Half → 25K
16:47 | 6:55/mi
30K· 18.64 mi
2:04:59
Rank: #3478 (-673)
25K → 30K
22:54 | 7:22/mi
20M
2:15:53
Rank: #4096 (-618)
30K → 20M
10:54 | 8:01/mi
21M
2:24:33
Rank: #4612 (-516)
20M → 21M
8:40 | 8:40/mi
35K· 21.75 mi
2:30:48
Rank: #4967 (-355)
21M → 35K
6:15 | 8:21/mi
23M
2:41:48
Rank: #5430 (-463)
35K → 23M
11:00 | 8:47/mi
24M
2:51:44
Rank: #6058 (-628)
23M → 24M
9:56 | 9:56/mi
40K· 24.85 mi
2:59:48
Rank: #6436 (-378)
24M → 40K
8:04 | 9:26/mi
25.2M
3:02:56
Rank: #6501 (-65)
40K → 25.2M
3:08 | 9:05/mi
Finish· 26.22 mi
3:11:17
Rank: #6696 (-195)
25.2M → Finish
8:21 | 8:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:18
Pace6:30 /mi
2nd Half
Distance13.11 mi
Time1:45:59
Pace8:05 /mi
📊Positive Split: 24.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:4920:096:2920:09
6:29
-
10K
6.21 mi10:41:3339:536:2519:44
6:21
-0:08
15K
9.32 mi11:01:491:00:096:2720:16
6:31
+0:10
20K
12.43 mi11:22:291:20:496:3020:40
6:39
+0:08
Half
13.11 mi11:26:581:25:186:304:29
6:34
-0:05
25K
15.53 mi11:43:451:42:056:3416:47
6:55
+0:21
30K
18.64 mi12:06:392:04:596:4222:54
7:22
+0:27
20M
20.00 mi12:17:332:15:536:4810:54
8:01
+0:39
21M
21.00 mi12:26:132:24:336:538:40
8:40
+0:39
35K
21.75 mi12:32:282:30:486:566:15
8:21
-0:19
23M
23.00 mi12:43:282:41:487:0211:00
8:47
+0:26
24M
24.00 mi12:53:242:51:447:099:56
9:56
+1:09
40K
24.85 mi13:01:282:59:487:148:04
9:26
-0:30
25.2M
25.20 mi13:04:363:02:567:163:08
9:05
-0:21
Finish
26.22 mi13:12:573:11:177:188:21
8:12
-0:53

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

6:21 /mi

Average Pace

7:18 /mi

Slowest Pace

9:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:59

65% of race

Time at Steady Pace

25:30

13% of race

Time at Slower Pace

40:48

21% of race

Average Pace: 7:18 /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 mi10:21:4920:096:2920:09
6:29
#2217
10K
6.21 mi10:41:3339:536:2519:44
6:21
#2093
15K
9.32 mi11:01:491:00:096:2720:16
6:31
#2282
20K
12.43 mi11:22:291:20:496:3020:40
6:39
#2469
Half
13.11 mi11:26:581:25:186:304:29
6:34
#2498
25K
15.53 mi11:43:451:42:056:3416:47
6:55
#2805
30K
18.64 mi12:06:392:04:596:4222:54
7:22
#3478
20M
20.00 mi12:17:332:15:536:4810:54
8:01
#4096
21M
21.00 mi12:26:132:24:336:538:40
8:40
#4612
35K
21.75 mi12:32:282:30:486:566:15
8:21
#4967
23M
23.00 mi12:43:282:41:487:0211:00
8:47
#5430
24M
24.00 mi12:53:242:51:447:099:56
9:56
#6058
40K
24.85 mi13:01:282:59:487:148:04
9:26
#6436
25.2M
25.20 mi13:04:363:02:567:163:08
9:05
#6501
Finish
26.22 mi13:12:573:11:177:188:21
8:12
#6696
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2217211621162787(Top 10%)2663(Top 18%)2663(Top 50%)
10K6.21 mi3.10 mi2093+1242003+1132003+1131994(Top 7%)1911(Top 13%)1911(Top 36%)
15K9.32 mi3.11 mi2282-1892185-1822185-1822787(Top 10%)2663(Top 18%)2663(Top 50%)
20K12.43 mi3.11 mi2469-1872364-1792364-1793210(Top 12%)3051(Top 20%)3051(Top 58%)
Half13.11 mi0.68 mi2498-292393-292393-293292(Top 12%)3142(Top 21%)3142(Top 59%)
25K15.53 mi2.42 mi2805-3072682-2892682-2895117(Top 19%)4727(Top 31%)4727(Top 89%)
30K18.64 mi3.11 mi3478-6733293-6113293-6116426(Top 24%)5679(Top 37%)5679(Top 107%)
20M20.00 mi1.36 mi4096-6183847-5543847-55410384(Top 39%)7942(Top 52%)7942(Top 150%)
21M21.00 mi1.00 mi4612-5164297-4504297-45011416(Top 43%)8293(Top 55%)8293(Top 157%)
35K21.75 mi0.75 mi4967-3554595-2984595-29814375(Top 54%)9570(Top 63%)9570(Top 181%)
23M23.00 mi1.25 mi5430-4634977-3824977-38214876(Top 56%)9746(Top 64%)9746(Top 184%)
24M24.00 mi1.00 mi6058-6285452-4755452-47520582(Top 77%)12239(Top 81%)12239(Top 232%)
40K24.85 mi0.85 mi6436-3785724-2725724-27218056(Top 68%)11052(Top 73%)11052(Top 209%)
25.2M25.20 mi0.35 mi6501-655760-365760-3612897(Top 48%)8677(Top 57%)8677(Top 164%)
Finish26.22 mi1.02 mi6696-1955881-1215881-12113350(Top 50%)8935(Top 59%)8935(Top 169%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2787

Males

2663

M18-39

2663

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1994

Males

1911

M18-39

1911

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2787

Males

2663

M18-39

2663

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3210

Males

3051

M18-39

3051

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3292

Males

3142

M18-39

3142

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5117

Males

4727

M18-39

4727

25K→30K

15.5 - 18.6 mi

Top 24%
×9stories
+181ft-148ft

Overall

6426

Males

5679

M18-39

5679

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

10384

Males

7942

M18-39

7942

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

11416

Males

8293

M18-39

8293

21M→35K

21.0 - 21.8 mi

Top 54%
×7stories
+17ft-86ft

Overall

14375

Males

9570

M18-39

9570

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

14876

Males

9746

M18-39

9746

23M→24M

23.0 - 24.0 mi

Top 77%
×6stories
+12ft-82ft

Overall

20582

Males

12239

M18-39

12239

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

18056

Males

11052

M18-39

11052

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

12897

Males

8677

M18-39

8677

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

13350

Males

8935

M18-39

8935

Passing Analysis

Category:
Athletes Passed
312
Passed By
4791
Net Change
-4479
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2217
5K → 10K19268+124#2217#2093
10K → 15K18207-189#2093#2282
15K → 20K29216-187#2282#2469
20K → Half231-29#2469#2498
Half → 25K7314-307#2498#2805
25K → 30K5678-673#2805#3478
30K → 20M5623-618#3478#4096
20M → 21M9525-516#4096#4612
21M → 35K5360-355#4612#4967
35K → 23M9472-463#4967#5430
23M → 24M5633-628#5430#6058
24M → 40K5383-378#6058#6436
40K → 25.2M873-65#6436#6501
25.2M → Finish13208-195#6501#6696
TOTALS3124791-4479
📊

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