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BOSTON MARATHON 2023

Bonnie Zimmerman

Bib: 14263•F

CO

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 48%
Gender (Female)
#0 / 11423
Top 31%
Division (F18-39)
#0 / 4884
Top 49%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:28
Rank: #10116
Start → 5K
23:28 | 7:33/mi
10K· 6.21 mi
46:48
Rank: #10330 (-214)
5K → 10K
23:20 | 7:31/mi
15K· 9.32 mi
1:10:36
Rank: #10717 (-387)
10K → 15K
23:48 | 7:40/mi
20K· 12.43 mi
1:35:02
Rank: #11086 (-369)
15K → 20K
24:26 | 7:52/mi
Half· 13.11 mi
1:40:16
Rank: #11115 (-29)
20K → Half
5:14 | 7:40/mi
25K· 15.53 mi
1:59:53
Rank: #11447 (-332)
Half → 25K
19:37 | 8:05/mi
30K· 18.64 mi
2:26:12
Rank: #11977 (-530)
25K → 30K
26:19 | 8:28/mi
20M
2:37:49
Rank: #12142 (-165)
30K → 20M
11:37 | 8:33/mi
21M
2:47:04
Rank: #12302 (-160)
20M → 21M
9:15 | 9:15/mi
35K· 21.75 mi
2:53:22
Rank: #12410 (-108)
21M → 35K
6:18 | 8:25/mi
23M
3:04:11
Rank: #12502 (-92)
35K → 23M
10:49 | 8:38/mi
24M
3:12:42
Rank: #12601 (-99)
23M → 24M
8:31 | 8:31/mi
40K· 24.85 mi
3:20:00
Rank: #12648 (-47)
24M → 40K
7:18 | 8:32/mi
25.2M
3:23:09
Rank: #12658 (-10)
40K → 25.2M
3:09 | 9:08/mi
Finish· 26.22 mi
3:31:27
Rank: #12657 (+1)
25.2M → Finish
8:18 | 8:09/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:16
Pace7:39 /mi
2nd Half
Distance13.11 mi
Time1:51:11
Pace8:29 /mi
📊Positive Split: 10.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:3123:287:3323:28
7:33
-
10K
6.21 mi11:15:5146:487:3223:20
7:31
-0:02
15K
9.32 mi11:39:391:10:367:3423:48
7:40
+0:09
20K
12.43 mi12:04:051:35:027:3924:26
7:52
+0:12
Half
13.11 mi12:09:191:40:167:395:14
7:40
-0:12
25K
15.53 mi12:28:561:59:537:4319:37
8:05
+0:25
30K
18.64 mi12:55:152:26:127:5126:19
8:28
+0:23
20M
20.00 mi13:06:522:37:497:5311:37
8:33
+0:05
21M
21.00 mi13:16:072:47:047:579:15
9:15
+0:42
35K
21.75 mi13:22:252:53:227:586:18
8:25
-0:50
23M
23.00 mi13:33:143:04:118:0010:49
8:38
+0:13
24M
24.00 mi13:41:453:12:428:028:31
8:31
-0:07
40K
24.85 mi13:49:033:20:008:037:18
8:32
+0:01
25.2M
25.20 mi13:52:123:23:098:043:09
9:08
+0:36
Finish
26.22 mi14:00:303:31:278:048:18
8:09
-0:59

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

7:31 /mi

Average Pace

8:04 /mi

Slowest Pace

9:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:11

61% of race

Time at Steady Pace

1:10:52

34% of race

Time at Slower Pace

12:24

6% of race

Average Pace: 8:04 /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 mi10:52:3123:287:3323:28
7:33
#10116
10K
6.21 mi11:15:5146:487:3223:20
7:31
#10330
15K
9.32 mi11:39:391:10:367:3423:48
7:40
#10717
20K
12.43 mi12:04:051:35:027:3924:26
7:52
#11086
Half
13.11 mi12:09:191:40:167:395:14
7:40
#11115
25K
15.53 mi12:28:561:59:537:4319:37
8:05
#11447
30K
18.64 mi12:55:152:26:127:5126:19
8:28
#11977
20M
20.00 mi13:06:522:37:497:5311:37
8:33
#12142
21M
21.00 mi13:16:072:47:047:579:15
9:15
#12302
35K
21.75 mi13:22:252:53:227:586:18
8:25
#12410
23M
23.00 mi13:33:143:04:118:0010:49
8:38
#12502
24M
24.00 mi13:41:453:12:428:028:31
8:31
#12601
40K
24.85 mi13:49:033:20:008:037:18
8:32
#12648
25.2M
25.20 mi13:52:123:23:098:043:09
9:08
#12658
Finish
26.22 mi14:00:303:31:278:048:18
8:09
#12657
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi101161920192011528(Top 43%)2650(Top 23%)2650(Top 54%)
10K6.21 mi3.10 mi10330-2141994-741994-7410546(Top 40%)2083(Top 18%)2083(Top 43%)
15K9.32 mi3.11 mi10717-3872180-1862180-18611528(Top 43%)2650(Top 23%)2650(Top 54%)
20K12.43 mi3.11 mi11086-3692375-1952375-19512301(Top 46%)3138(Top 27%)3138(Top 64%)
Half13.11 mi0.68 mi11115-292396-212396-2111739(Top 44%)2783(Top 24%)2783(Top 57%)
25K15.53 mi2.42 mi11447-3322617-2212617-22113448(Top 51%)3887(Top 34%)3887(Top 80%)
30K18.64 mi3.11 mi11977-5302964-3472964-34714118(Top 53%)4401(Top 39%)4401(Top 90%)
20M20.00 mi1.36 mi12142-1653079-1153079-11513927(Top 52%)4361(Top 38%)4361(Top 89%)
21M21.00 mi1.00 mi12302-1603177-983177-9814723(Top 55%)4881(Top 43%)4881(Top 100%)
35K21.75 mi0.75 mi12410-1083264-873264-8714850(Top 56%)5005(Top 44%)5005(Top 102%)
23M23.00 mi1.25 mi12502-923331-673331-6714020(Top 53%)4621(Top 40%)4621(Top 95%)
24M24.00 mi1.00 mi12601-993412-813412-8114571(Top 55%)4993(Top 44%)4993(Top 102%)
40K24.85 mi0.85 mi12648-473461-493461-4913599(Top 51%)4520(Top 40%)4520(Top 93%)
25.2M25.20 mi0.35 mi12658-103476-153476-1513301(Top 50%)4372(Top 38%)4372(Top 90%)
Finish26.22 mi1.02 mi12657+13495-193495-1913088(Top 49%)4257(Top 37%)4257(Top 87%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21stories
+97ft-345ft

Overall

11528

Females

2650

F18-39

2650

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

10546

Females

2083

F18-39

2083

10K→15K

6.2 - 9.3 mi

Top 43%
×3stories
+67ft-78ft

Overall

11528

Females

2650

F18-39

2650

15K→20K

9.3 - 12.4 mi

Top 46%
×5stories
+106ft-86ft

Overall

12301

Females

3138

F18-39

3138

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

11739

Females

2783

F18-39

2783

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

13448

Females

3887

F18-39

3887

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

14118

Females

4401

F18-39

4401

30K→20M

18.6 - 20.0 mi

Top 52%
×5stories
+64ft-50ft

Overall

13927

Females

4361

F18-39

4361

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

14723

Females

4881

F18-39

4881

21M→35K

21.0 - 21.8 mi

Top 56%
×7stories
+17ft-86ft

Overall

14850

Females

5005

F18-39

5005

35K→23M

21.8 - 23.0 mi

Top 53%
×5stories
+23ft-63ft

Overall

14020

Females

4621

F18-39

4621

23M→24M

23.0 - 24.0 mi

Top 55%
×6stories
+12ft-82ft

Overall

14571

Females

4993

F18-39

4993

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

13599

Females

4520

F18-39

4520

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13301

Females

4372

F18-39

4372

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

13088

Females

4257

F18-39

4257

Passing Analysis

Category:
Athletes Passed
841*
Passed By
3382
Net Change
-2541
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10116
5K → 10K218*432-214#10116#10330
10K → 15K68455-387#10330#10717
15K → 20K67436-369#10717#11086
20K → Half1443-29#11086#11115
Half → 25K46378-332#11115#11447
25K → 30K64594-530#11447#11977
30K → 20M63228-165#11977#12142
20M → 21M41201-160#12142#12302
21M → 35K24132-108#12302#12410
35K → 23M57149-92#12410#12502
23M → 24M46145-99#12502#12601
24M → 40K4390-47#12601#12648
40K → 25.2M2535-10#12648#12658
25.2M → Finish6564+1#12658#12657
TOTALS841*3382-2541

* 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