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BOSTON MARATHON 2023

Allison Stein

Bib: 15200•F

PA

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

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:59/mi
24:47
↑ 97↓ 3451.5%
10K· 6.21 mi
8:15/mi
50:25
↑ 79↓ 1380.4%
15K· 9.32 mi
8:24/mi
1:16:32
↑ 67↓ 78
20K· 12.43 mi
8:42/mi
1:43:33
↑ 106↓ 860.1%
Half· 13.11 mi
8:24/mi
1:49:17
↑ 19↓ 370.5%
25K· 15.53 mi
8:57/mi
2:10:58
↑ 66↓ 880.2%
30K· 18.64 mi
9:31/mi
2:40:31
↑ 181↓ 1480.2%
20M
9:30/mi
2:53:25
↑ 64↓ 500.2%
21M
10:26/mi
3:03:51
↑ 106↓ 241.6%
35K· 21.75 mi
9:21/mi
3:10:51
↑ 17↓ 861.7%
23M
9:46/mi
3:23:05
↑ 23↓ 630.6%
24M
9:40/mi
3:32:45
↓ 821.3%
40K· 24.85 mi
9:49/mi
3:41:09
↓ 200.3%
25.2M
10:21/mi
3:44:43
↑ 13↓ 160.2%
Finish· 26.22 mi
9:17/mi
3:54:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:17
Pace8:20 /mi
2nd Half
Distance13.11 mi
Time2:04:54
Pace9:32 /mi
📊Positive Split: 14.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:2124:477:5924:47
7:59
-
10K
6.21 mi11:20:5950:258:0725:38
8:15
+0:16
15K
9.32 mi11:47:061:16:328:1326:07
8:24
+0:09
20K
12.43 mi12:14:071:43:338:2027:01
8:42
+0:18
Half
13.11 mi12:19:511:49:178:205:44
8:24
-0:18
25K
15.53 mi12:41:322:10:588:2621:41
8:57
+0:33
30K
18.64 mi13:11:052:40:318:3729:33
9:31
+0:34
20M
20.00 mi13:23:592:53:258:4012:54
9:30
-0:01
21M
21.00 mi13:34:253:03:518:4510:26
10:26
+0:56
35K
21.75 mi13:41:253:10:518:477:00
9:21
-1:05
23M
23.00 mi13:53:393:23:058:5012:14
9:46
+0:25
24M
24.00 mi14:03:193:32:458:529:40
9:40
-0:06
40K
24.85 mi14:11:433:41:098:548:24
9:49
+0:09
25.2M
25.20 mi14:15:173:44:438:553:34
10:21
+0:32
Finish
26.22 mi14:24:453:54:118:569:28
9:17
-1:04

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

7:59 /mi

Average Pace

8:56 /mi

Slowest Pace

10:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:58

56% of race

Time at Steady Pace

1:08:35

29% of race

Time at Slower Pace

34:38

15% of race

Average Pace: 8:56 /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 mi10:55:2124:477:5924:47
7:59
#13877
10K
6.21 mi11:20:5950:258:0725:38
8:15
#15220
15K
9.32 mi11:47:061:16:328:1326:07
8:24
#15915
20K
12.43 mi12:14:071:43:338:2027:01
8:42
#16507
Half
13.11 mi12:19:511:49:178:205:44
8:24
#16546
25K
15.53 mi12:41:322:10:588:2621:41
8:57
#16931
30K
18.64 mi13:11:052:40:318:3729:33
9:31
#17437
20M
20.00 mi13:23:592:53:258:4012:54
9:30
#17550
21M
21.00 mi13:34:253:03:518:4510:26
10:26
#17715
35K
21.75 mi13:41:253:10:518:477:00
9:21
#17789
23M
23.00 mi13:53:393:23:058:5012:14
9:46
#17948
24M
24.00 mi14:03:193:32:458:529:40
9:40
#18061
40K
24.85 mi14:11:433:41:098:548:24
9:49
#18140
25.2M
25.20 mi14:15:173:44:438:553:34
10:21
#18160
Finish
26.22 mi14:24:453:54:118:569:28
9:17
#18207
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi138773953395317197(Top 65%)6047(Top 53%)6047(Top 124%)
10K6.21 mi3.10 mi15220-13434783-8304783-83016607(Top 62%)5646(Top 49%)5646(Top 116%)
15K9.32 mi3.11 mi15915-6955227-4445227-44417197(Top 65%)6047(Top 53%)6047(Top 124%)
20K12.43 mi3.11 mi16507-5925619-3925619-39218109(Top 68%)6573(Top 58%)6573(Top 135%)
Half13.11 mi0.68 mi16546-395644-255644-2517221(Top 65%)6037(Top 53%)6037(Top 124%)
25K15.53 mi2.42 mi16931-3855909-2655909-26518684(Top 70%)6953(Top 61%)6953(Top 142%)
30K18.64 mi3.11 mi17437-5066216-3076216-30719477(Top 73%)7455(Top 65%)7455(Top 153%)
20M20.00 mi1.36 mi17550-1136307-916307-9118837(Top 71%)7208(Top 63%)7208(Top 148%)
21M21.00 mi1.00 mi17715-1656421-1146421-11419380(Top 73%)7564(Top 66%)7564(Top 155%)
35K21.75 mi0.75 mi17789-746475-546475-5419378(Top 73%)7586(Top 66%)7586(Top 155%)
23M23.00 mi1.25 mi17948-1596585-1106585-11019343(Top 73%)7604(Top 67%)7604(Top 156%)
24M24.00 mi1.00 mi18061-1136667-826667-8219777(Top 74%)7848(Top 69%)7848(Top 161%)
40K24.85 mi0.85 mi18140-796720-536720-5319469(Top 73%)7750(Top 68%)7750(Top 159%)
25.2M25.20 mi0.35 mi18160-206735-156735-1518632(Top 70%)7294(Top 64%)7294(Top 149%)
Finish26.22 mi1.02 mi18207-476771-366771-3619325(Top 73%)7625(Top 67%)7625(Top 156%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21story building
+97ft-345ft

Overall

17197

Females

6047

F18-39

6047

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

16607

Females

5646

F18-39

5646

10K→15K

6.2 - 9.3 mi

Top 65%
×3story building
+67ft-78ft

Overall

17197

Females

6047

F18-39

6047

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

18109

Females

6573

F18-39

6573

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

17221

Females

6037

F18-39

6037

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

18684

Females

6953

F18-39

6953

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

19477

Females

7455

F18-39

7455

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

18837

Females

7208

F18-39

7208

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

19380

Females

7564

F18-39

7564

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

19378

Females

7586

F18-39

7586

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

19343

Females

7604

F18-39

7604

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

19777

Females

7848

F18-39

7848

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

19469

Females

7750

F18-39

7750

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

18632

Females

7294

F18-39

7294

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2story building
+22ft-21ft

Overall

19325

Females

7625

F18-39

7625

Passing Analysis

Category:
Athletes Passed
521
Passed By
4851
Net Change
-4330
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13877
5K → 10K291372-1343#13877#15220
10K → 15K37732-695#15220#15915
15K → 20K50642-592#15915#16507
20K → Half1756-39#16507#16546
Half → 25K47432-385#16546#16931
25K → 30K68574-506#16931#17437
30K → 20M54167-113#17437#17550
20M → 21M36201-165#17550#17715
21M → 35K34108-74#17715#17789
35K → 23M46205-159#17789#17948
23M → 24M24137-113#17948#18061
24M → 40K29108-79#18061#18140
40K → 25.2M1535-20#18140#18160
25.2M → Finish3582-47#18160#18207
TOTALS5214851-4330
📊

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