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BOSTON MARATHON 2023

Holly Rozelle

Bib: 15007•F

MN

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 40%
Gender (Female)
#0 / 11423
Top 22%
Division (F18-39)
#0 / 4884
Top 37%
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
7:47/mi
24:12
↑ 97↓ 3451.5%
10K· 6.21 mi
7:42/mi
48:08
↑ 79↓ 1380.4%
15K· 9.32 mi
7:40/mi
1:11:57
↑ 67↓ 78
20K· 12.43 mi
7:45/mi
1:36:03
↑ 106↓ 860.1%
Half· 13.11 mi
7:40/mi
1:41:17
↑ 19↓ 370.5%
25K· 15.53 mi
7:51/mi
2:00:18
↑ 66↓ 880.2%
30K· 18.64 mi
7:54/mi
2:24:50
↑ 181↓ 1480.2%
20M
8:01/mi
2:35:43
↑ 64↓ 500.2%
21M
8:27/mi
2:44:10
↑ 106↓ 241.6%
35K· 21.75 mi
7:46/mi
2:49:59
↑ 17↓ 861.7%
23M
8:14/mi
3:00:17
↑ 23↓ 630.6%
24M
8:05/mi
3:08:22
↓ 821.3%
40K· 24.85 mi
8:03/mi
3:15:15
↓ 200.3%
25.2M
8:22/mi
3:18:08
↑ 13↓ 160.2%
Finish· 26.22 mi
7:00/mi
3:25:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:17
Pace7:44 /mi
2nd Half
Distance13.11 mi
Time1:43:59
Pace7:56 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:0524:127:4724:12
7:47
-
10K
6.21 mi11:19:0148:087:4523:56
7:42
-0:05
15K
9.32 mi11:42:501:11:577:4323:49
7:40
-0:02
20K
12.43 mi12:06:561:36:037:4424:06
7:45
+0:05
Half
13.11 mi12:12:101:41:177:445:14
7:40
-0:05
25K
15.53 mi12:31:112:00:187:4519:01
7:51
+0:11
30K
18.64 mi12:55:432:24:507:4624:32
7:54
+0:03
20M
20.00 mi13:06:362:35:437:4710:53
8:01
+0:07
21M
21.00 mi13:15:032:44:107:498:27
8:27
+0:26
35K
21.75 mi13:20:522:49:597:495:49
7:46
-0:41
23M
23.00 mi13:31:103:00:177:5010:18
8:14
+0:28
24M
24.00 mi13:39:153:08:227:518:05
8:05
-0:09
40K
24.85 mi13:46:083:15:157:516:53
8:03
-0:02
25.2M
25.20 mi13:49:013:18:087:522:53
8:22
+0:19
Finish
26.22 mi13:56:093:25:167:507:08
7:00
-1:22

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

7:00 /mi

Average Pace

7:50 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

36:11

18% of race

Time at Steady Pace

2:12:29

65% of race

Time at Slower Pace

36:36

18% of race

Average Pace: 7:50 /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 mi10:55:0524:127:4724:12
7:47
#12260
10K
6.21 mi11:19:0148:087:4523:56
7:42
#12236
15K
9.32 mi11:42:501:11:577:4323:49
7:40
#11953
20K
12.43 mi12:06:561:36:037:4424:06
7:45
#11784
Half
13.11 mi12:12:101:41:177:445:14
7:40
#11767
25K
15.53 mi12:31:112:00:187:4519:01
7:51
#11669
30K
18.64 mi12:55:432:24:507:4624:32
7:54
#11342
20M
20.00 mi13:06:362:35:437:4710:53
8:01
#11238
21M
21.00 mi13:15:032:44:107:498:27
8:27
#11137
35K
21.75 mi13:20:522:49:597:495:49
7:46
#11115
23M
23.00 mi13:31:103:00:177:5010:18
8:14
#11120
24M
24.00 mi13:39:153:08:227:518:05
8:05
#11145
40K
24.85 mi13:46:083:15:157:516:53
8:03
#11079
25.2M
25.20 mi13:49:013:18:087:522:53
8:22
#11032
Finish
26.22 mi13:56:093:25:167:507:08
7:00
#10747
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi122603011301111565(Top 43%)2663(Top 23%)2663(Top 55%)
10K6.21 mi3.10 mi12236+242992+192992+1912274(Top 46%)3022(Top 26%)3022(Top 62%)
15K9.32 mi3.11 mi11953+2832865+1272865+12711565(Top 43%)2663(Top 23%)2663(Top 55%)
20K12.43 mi3.11 mi11784+1692790+752790+7511377(Top 43%)2615(Top 23%)2615(Top 54%)
Half13.11 mi0.68 mi11767+172780+102780+1011657(Top 44%)2701(Top 24%)2701(Top 55%)
25K15.53 mi2.42 mi11669+982739+412739+4111461(Top 43%)2743(Top 24%)2743(Top 56%)
30K18.64 mi3.11 mi11342+3272606+1332606+13310126(Top 38%)2225(Top 19%)2225(Top 46%)
20M20.00 mi1.36 mi11238+1042562+442562+4410356(Top 39%)2402(Top 21%)2402(Top 49%)
21M21.00 mi1.00 mi11137+1012525+372525+3710201(Top 38%)2476(Top 22%)2476(Top 51%)
35K21.75 mi0.75 mi11115+222527-22527-210509(Top 39%)2609(Top 23%)2609(Top 53%)
23M23.00 mi1.25 mi11120-52556-292556-2911376(Top 43%)3191(Top 28%)3191(Top 65%)
24M24.00 mi1.00 mi11145-252600-442600-4411834(Top 44%)3496(Top 31%)3496(Top 72%)
40K24.85 mi0.85 mi11079+662590+102590+1010390(Top 39%)2832(Top 25%)2832(Top 58%)
25.2M25.20 mi0.35 mi11032+472582+82582+88741(Top 33%)2144(Top 19%)2144(Top 44%)
Finish26.22 mi1.02 mi10747+2852469+1132469+1135255(Top 20%)815(Top 7%)815(Top 17%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

11565

Females

2663

F18-39

2663

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

12274

Females

3022

F18-39

3022

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

11565

Females

2663

F18-39

2663

15K→20K

9.3 - 12.4 mi

Top 43%
×5story building
+106ft-86ft

Overall

11377

Females

2615

F18-39

2615

20K→Half

12.4 - 13.1 mi

Top 44%
×2story building
+19ft-37ft

Overall

11657

Females

2701

F18-39

2701

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

11461

Females

2743

F18-39

2743

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10126

Females

2225

F18-39

2225

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

10356

Females

2402

F18-39

2402

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10201

Females

2476

F18-39

2476

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

10509

Females

2609

F18-39

2609

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

11376

Females

3191

F18-39

3191

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

11834

Females

3496

F18-39

3496

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10390

Females

2832

F18-39

2832

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

8741

Females

2144

F18-39

2144

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2story building
+22ft-21ft

Overall

5255

Females

815

F18-39

815

Passing Analysis

Category:
Athletes Passed
2459
Passed By
946
Net Change
+1513
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12260
5K → 10K328304+24#12260#12236
10K → 15K36582+283#12236#11953
15K → 20K25687+169#11953#11784
20K → Half3821+17#11784#11767
Half → 25K19092+98#11767#11669
25K → 30K36740+327#11669#11342
30K → 20M14642+104#11342#11238
20M → 21M13736+101#11238#11137
21M → 35K5129+22#11137#11115
35K → 23M8388-5#11115#11120
23M → 24M6792-25#11120#11145
24M → 40K9226+66#11145#11079
40K → 25.2M547+47#11079#11032
25.2M → Finish2850+285#11032#10747
TOTALS2459946+1513
📊

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