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BOSTON MARATHON 2023

Reagan Seiler

Bib: 16010•F

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 43%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:38
Rank: #15794
Start → 5K
8:15/mi
25:38 split
10K· 6.21 mi
51:15
Rank: #16174 (-380)
5K → 10K
8:15/mi
25:38 split
15K· 9.32 mi
1:17:14
Rank: #16426 (-252)
10K → 15K
8:22/mi
25:59 split
20K· 12.43 mi
1:42:35
Rank: #15947 (+479)
15K → 20K
8:10/mi
25:21 split
Half· 13.11 mi
1:48:10
Rank: #15920 (+27)
20K → Half
8:11/mi
5:35 split
25K· 15.53 mi
2:07:55
Rank: #15579 (+341)
Half → 25K
8:09/mi
19:45 split
30K· 18.64 mi
2:33:59
Rank: #15195 (+384)
25K → 30K
8:23/mi
26:04 split
20M
2:45:43
Rank: #15138 (+57)
30K → 20M
8:38/mi
11:44 split
21M
2:54:56
Rank: #15086 (+52)
20M → 21M
9:13/mi
9:13 split
35K· 21.75 mi
3:00:52
Rank: #14962 (+124)
21M → 35K
7:56/mi
5:56 split
23M
3:12:18
Rank: #15053 (-91)
35K → 23M
9:08/mi
11:26 split
24M
3:20:47
Rank: #15008 (+45)
23M → 24M
8:29/mi
8:29 split
40K· 24.85 mi
3:28:37
Rank: #15070 (-62)
24M → 40K
9:10/mi
7:50 split
25.2M
3:32:04
Rank: #15107 (-37)
40K → 25.2M
10:00/mi
3:27 split
Finish· 26.22 mi
3:40:40
Rank: #15101 (+6)
25.2M → Finish
8:26/mi
8:36 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:10
Pace8:15 /mi
2nd Half
Distance13.11 mi
Time1:52:30
Pace8:35 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:4825:388:1525:38
8:15
-
10K
6.21 mi11:41:2551:158:1525:38
8:15
0:00
15K
9.32 mi12:07:241:17:148:1725:59
8:22
+0:07
20K
12.43 mi12:32:451:42:358:1525:21
8:10
-0:12
Half
13.11 mi12:38:201:48:108:155:35
8:11
+0:01
25K
15.53 mi12:58:052:07:558:1419:45
8:09
-0:02
30K
18.64 mi13:24:092:33:598:1626:04
8:23
+0:14
20M
20.00 mi13:35:532:45:438:1711:44
8:38
+0:15
21M
21.00 mi13:45:062:54:568:209:13
9:13
+0:35
35K
21.75 mi13:51:023:00:528:195:56
7:56
-1:17
23M
23.00 mi14:02:283:12:188:2211:26
9:08
+1:12
24M
24.00 mi14:10:573:20:478:228:29
8:29
-0:39
40K
24.85 mi14:18:473:28:378:247:50
9:10
+0:41
25.2M
25.20 mi14:22:143:32:048:253:27
10:00
+0:50
Finish
26.22 mi14:30:503:40:408:258:36
8:26
-1:34

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

7:56 /mi

Average Pace

8:25 /mi

Slowest Pace

10:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

5:56

3% of race

Time at Steady Pace

3:02:48

83% of race

Time at Slower Pace

31:56

14% of race

Average Pace: 8:25 /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 mi11:15:4825:388:1525:38
8:15
#15794
10K
6.21 mi11:41:2551:158:1525:38
8:15
#16174
15K
9.32 mi12:07:241:17:148:1725:59
8:22
#16426
20K
12.43 mi12:32:451:42:358:1525:21
8:10
#15947
Half
13.11 mi12:38:201:48:108:155:35
8:11
#15920
25K
15.53 mi12:58:052:07:558:1419:45
8:09
#15579
30K
18.64 mi13:24:092:33:598:1626:04
8:23
#15195
20M
20.00 mi13:35:532:45:438:1711:44
8:38
#15138
21M
21.00 mi13:45:062:54:568:209:13
9:13
#15086
35K
21.75 mi13:51:023:00:528:195:56
7:56
#14962
23M
23.00 mi14:02:283:12:188:2211:26
9:08
#15053
24M
24.00 mi14:10:573:20:478:228:29
8:29
#15008
40K
24.85 mi14:18:473:28:378:247:50
9:10
#15070
25.2M
25.20 mi14:22:143:32:048:253:27
10:00
#15107
Finish
26.22 mi14:30:503:40:408:258:36
8:26
#15101
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi157945154515416935(Top 64%)5865(Top 51%)5865(Top 120%)
10K6.21 mi3.10 mi16174-3805382-2285382-22816574(Top 62%)5627(Top 49%)5627(Top 115%)
15K9.32 mi3.11 mi16426-2525541-1595541-15916935(Top 64%)5865(Top 51%)5865(Top 120%)
20K12.43 mi3.11 mi15947+4795273+2685273+26814684(Top 55%)4517(Top 40%)4517(Top 92%)
Half13.11 mi0.68 mi15920+275256+175256+1715720(Top 59%)5126(Top 45%)5126(Top 105%)
25K15.53 mi2.42 mi15579+3415081+1755081+17513867(Top 52%)4143(Top 36%)4143(Top 85%)
30K18.64 mi3.11 mi15195+3844883+1984883+19813653(Top 51%)4128(Top 36%)4128(Top 85%)
20M20.00 mi1.36 mi15138+574862+214862+2114509(Top 55%)4711(Top 41%)4711(Top 96%)
21M21.00 mi1.00 mi15086+524853+94853+914583(Top 55%)4813(Top 42%)4813(Top 99%)
35K21.75 mi0.75 mi14962+1244790+634790+6311692(Top 44%)3271(Top 29%)3271(Top 67%)
23M23.00 mi1.25 mi15053-914878-884878-8816700(Top 63%)6131(Top 54%)6131(Top 126%)
24M24.00 mi1.00 mi15008+454861+174861+1714405(Top 54%)4899(Top 43%)4899(Top 100%)
40K24.85 mi0.85 mi15070-624918-574918-5716931(Top 64%)6355(Top 56%)6355(Top 130%)
25.2M25.20 mi0.35 mi15107-374950-324950-3217408(Top 65%)6641(Top 58%)6641(Top 136%)
Finish26.22 mi1.02 mi15101+64967-174967-1715033(Top 56%)5268(Top 46%)5268(Top 108%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21story building
+97ft-345ft

Overall

16935

Females

5865

F18-39

5865

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

16574

Females

5627

F18-39

5627

10K→15K

6.2 - 9.3 mi

Top 64%
×3story building
+67ft-78ft

Overall

16935

Females

5865

F18-39

5865

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

14684

Females

4517

F18-39

4517

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

15720

Females

5126

F18-39

5126

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

13867

Females

4143

F18-39

4143

25K→30K

15.5 - 18.6 mi

Top 51%
×9story building
+181ft-148ft

Overall

13653

Females

4128

F18-39

4128

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

14509

Females

4711

F18-39

4711

20M→21M

20.0 - 21.0 mi

Top 55%
×8story building
+106ft-24ft

Overall

14583

Females

4813

F18-39

4813

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

11692

Females

3271

F18-39

3271

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

16700

Females

6131

F18-39

6131

23M→24M

23.0 - 24.0 mi

Top 54%
×6story building
+12ft-82ft

Overall

14405

Females

4899

F18-39

4899

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

16931

Females

6355

F18-39

6355

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17408

Females

6641

F18-39

6641

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

15033

Females

5268

F18-39

5268

Passing Analysis

Category:
Athletes Passed
2187
Passed By
1494
Net Change
+693
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15794
5K → 10K151531-380#15794#16174
10K → 15K109361-252#16174#16426
15K → 20K49920+479#16426#15947
20K → Half4821+27#15947#15920
Half → 25K35211+341#15920#15579
25K → 30K40925+384#15579#15195
30K → 20M11255+57#15195#15138
20M → 21M11361+52#15138#15086
21M → 35K1273+124#15086#14962
35K → 23M54145-91#14962#15053
23M → 24M8136+45#15053#15008
24M → 40K46108-62#15008#15070
40K → 25.2M2461-37#15070#15107
25.2M → Finish6256+6#15107#15101
TOTALS21871494+693
📊

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