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BOSTON MARATHON 2023

Alison Schwartz

Bib: 16779•F

MD

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 31%
Gender (Female)
#0 / 11423
Top 12%
Division (F18-39)
#0 / 4884
Top 22%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:27
Rank: #10063
Start → 5K
23:27 | 7:33/mi
10K· 6.21 mi
47:10
Rank: #10841 (-778)
5K → 10K
23:43 | 7:38/mi
15K· 9.32 mi
1:10:37
Rank: #10727 (+114)
10K → 15K
23:27 | 7:33/mi
20K· 12.43 mi
1:34:05
Rank: #10443 (+284)
15K → 20K
23:28 | 7:33/mi
Half· 13.11 mi
1:39:09
Rank: #10397 (+46)
20K → Half
5:04 | 7:26/mi
25K· 15.53 mi
1:57:08
Rank: #9978 (+419)
Half → 25K
17:59 | 7:25/mi
30K· 18.64 mi
2:20:15
Rank: #9348 (+630)
25K → 30K
23:07 | 7:26/mi
20M
2:30:21
Rank: #9079 (+269)
30K → 20M
10:06 | 7:26/mi
21M
2:38:13
Rank: #8921 (+158)
20M → 21M
7:52 | 7:52/mi
35K· 21.75 mi
2:43:37
Rank: #8823 (+98)
21M → 35K
5:24 | 7:13/mi
23M
2:53:07
Rank: #8681 (+142)
35K → 23M
9:30 | 7:35/mi
24M
3:00:25
Rank: #8538 (+143)
23M → 24M
7:18 | 7:18/mi
40K· 24.85 mi
3:06:42
Rank: #8398 (+140)
24M → 40K
6:17 | 7:21/mi
25.2M
3:09:26
Rank: #8337 (+61)
40K → 25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
3:16:48
Rank: #8233 (+104)
25.2M → Finish
7:22 | 7:14/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:39:09
Pace7:34 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:37:39
Pace7:27 /mi
📊Negative Split: 1.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:3123:277:3323:27
7:33
-
10K
6.21 mi11:37:1447:107:3523:43
7:38
+0:05
15K
9.32 mi12:00:411:10:377:3523:27
7:33
-0:05
20K
12.43 mi12:24:091:34:057:3423:28
7:33
0:00
Half
13.11 mi12:29:131:39:097:345:04
7:26
-0:07
25K
15.53 mi12:47:121:57:087:3217:59
7:25
-0:01
30K
18.64 mi13:10:192:20:157:3123:07
7:26
+0:01
20M
20.00 mi13:20:252:30:217:3110:06
7:26
0:00
21M
21.00 mi13:28:172:38:137:327:52
7:52
+0:26
35K
21.75 mi13:33:412:43:377:315:24
7:13
-0:39
23M
23.00 mi13:43:112:53:077:329:30
7:35
+0:22
24M
24.00 mi13:50:293:00:257:317:18
7:18
-0:17
40K
24.85 mi13:56:463:06:427:316:17
7:21
+0:03
25.2M
25.20 mi13:59:303:09:267:312:44
7:56
+0:35
Finish
26.22 mi14:06:523:16:487:317:22
7:14
-0:42

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

7:13 /mi

Average Pace

7:31 /mi

Slowest Pace

7:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:59

78% of race

Time at Steady Pace

43:49

22% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:30 /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 mi11:13:3123:277:3323:27
7:33
#10063
10K
6.21 mi11:37:1447:107:3523:43
7:38
#10841
15K
9.32 mi12:00:411:10:377:3523:27
7:33
#10727
20K
12.43 mi12:24:091:34:057:3423:28
7:33
#10443
Half
13.11 mi12:29:131:39:097:345:04
7:26
#10397
25K
15.53 mi12:47:121:57:087:3217:59
7:25
#9978
30K
18.64 mi13:10:192:20:157:3123:07
7:26
#9348
20M
20.00 mi13:20:252:30:217:3110:06
7:26
#9079
21M
21.00 mi13:28:172:38:137:327:52
7:52
#8921
35K
21.75 mi13:33:412:43:377:315:24
7:13
#8823
23M
23.00 mi13:43:112:53:077:329:30
7:35
#8681
24M
24.00 mi13:50:293:00:257:317:18
7:18
#8538
40K
24.85 mi13:56:463:06:427:316:17
7:21
#8398
25.2M
25.20 mi13:59:303:09:267:312:44
7:56
#8337
Finish
26.22 mi14:06:523:16:487:317:22
7:14
#8233
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi100631888188810562(Top 40%)2113(Top 18%)2113(Top 43%)
10K6.21 mi3.10 mi10841-7782246-3582246-35811639(Top 44%)2664(Top 23%)2664(Top 55%)
15K9.32 mi3.11 mi10727+1142185+612185+6110562(Top 40%)2113(Top 18%)2113(Top 43%)
20K12.43 mi3.11 mi10443+2842039+1462039+1469730(Top 37%)1793(Top 16%)1793(Top 37%)
Half13.11 mi0.68 mi10397+462026+132026+139643(Top 36%)1714(Top 15%)1714(Top 35%)
25K15.53 mi2.42 mi9978+4191842+1841842+1848178(Top 31%)1247(Top 11%)1247(Top 26%)
30K18.64 mi3.11 mi9348+6301627+2151627+2156845(Top 26%)882(Top 8%)882(Top 18%)
20M20.00 mi1.36 mi9079+2691539+881539+886393(Top 24%)823(Top 7%)823(Top 17%)
21M21.00 mi1.00 mi8921+1581494+451494+456580(Top 25%)977(Top 9%)977(Top 20%)
35K21.75 mi0.75 mi8823+981463+311463+316690(Top 25%)992(Top 9%)992(Top 20%)
23M23.00 mi1.25 mi8681+1421441+221441+227023(Top 26%)1184(Top 10%)1184(Top 24%)
24M24.00 mi1.00 mi8538+1431404+371404+376417(Top 24%)1056(Top 9%)1056(Top 22%)
40K24.85 mi0.85 mi8398+1401374+301374+305796(Top 22%)913(Top 8%)913(Top 19%)
25.2M25.20 mi0.35 mi8337+611360+141360+146168(Top 23%)1118(Top 10%)1118(Top 23%)
Finish26.22 mi1.02 mi8233+1041347+131347+136644(Top 25%)1295(Top 11%)1295(Top 27%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

10562

Females

2113

F18-39

2113

5K→10K

3.1 - 6.2 mi

Top 44%
×5stories
+79ft-138ft

Overall

11639

Females

2664

F18-39

2664

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

10562

Females

2113

F18-39

2113

15K→20K

9.3 - 12.4 mi

Top 37%
×5stories
+106ft-86ft

Overall

9730

Females

1793

F18-39

1793

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

9643

Females

1714

F18-39

1714

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8178

Females

1247

F18-39

1247

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

6845

Females

882

F18-39

882

30K→20M

18.6 - 20.0 mi

Top 24%
×5stories
+64ft-50ft

Overall

6393

Females

823

F18-39

823

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

6580

Females

977

F18-39

977

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

6690

Females

992

F18-39

992

35K→23M

21.8 - 23.0 mi

Top 26%
×5stories
+23ft-63ft

Overall

7023

Females

1184

F18-39

1184

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6417

Females

1056

F18-39

1056

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5796

Females

913

F18-39

913

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6168

Females

1118

F18-39

1118

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

6644

Females

1295

F18-39

1295

Passing Analysis

Category:
Athletes Passed
2948*
Passed By
1117
Net Change
+1830
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10063
5K → 10K69846-778#10063#10841
10K → 15K243129+114#10841#10727
15K → 20K33046+284#10727#10443
20K → Half5610+46#10443#10397
Half → 25K426*7+419#10397#9978
25K → 30K632*2+630#9978#9348
30K → 20M2712+269#9348#9079
20M → 21M17012+158#9079#8921
21M → 35K1035+98#8921#8823
35K → 23M15513+142#8823#8681
23M → 24M15512+143#8681#8538
24M → 40K1488+140#8538#8398
40K → 25.2M665+61#8398#8337
25.2M → Finish12420+104#8337#8233
TOTALS2948*1117+1830

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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