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BOSTON MARATHON 2023

Rosanna Gessel-Larson

Bib: 30592•F

MA

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

Start
0:00:00
Race begins
5K· 3.11 mi
30:38
Rank: #23094
Start → 5K
30:38 | 9:52/mi
10K· 6.21 mi
1:00:41
Rank: #23089 (+5)
5K → 10K
30:03 | 9:40/mi
15K· 9.32 mi
1:30:20
Rank: #22858 (+231)
10K → 15K
29:39 | 9:33/mi
20K· 12.43 mi
2:00:36
Rank: #22683 (+175)
15K → 20K
30:16 | 9:45/mi
Half· 13.11 mi
2:07:11
Rank: #22685 (-2)
20K → Half
6:35 | 9:39/mi
25K· 15.53 mi
2:31:31
Rank: #22587 (+98)
Half → 25K
24:20 | 10:02/mi
30K· 18.64 mi
3:05:17
Rank: #22665 (-78)
25K → 30K
33:46 | 10:52/mi
20M
3:20:08
Rank: #22654 (+11)
30K → 20M
14:51 | 10:56/mi
21M
3:31:46
Rank: #22628 (+26)
20M → 21M
11:38 | 11:38/mi
35K· 21.75 mi
3:39:28
Rank: #22589 (+39)
21M → 35K
7:42 | 10:18/mi
23M
3:53:14
Rank: #22572 (+17)
35K → 23M
13:46 | 11:00/mi
24M
4:03:52
Rank: #22555 (+17)
23M → 24M
10:38 | 10:38/mi
40K· 24.85 mi
4:12:56
Rank: #22517 (+38)
24M → 40K
9:04 | 10:36/mi
25.2M
4:16:44
Rank: #22489 (+28)
40K → 25.2M
3:48 | 11:01/mi
Finish· 26.22 mi
4:26:51
Rank: #22456 (+33)
25.2M → Finish
10:07 | 9:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:11
Pace9:42 /mi
2nd Half
Distance13.11 mi
Time2:19:40
Pace10:39 /mi
📊Positive Split: 9.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:3830:389:5230:38
9:52
-
10K
6.21 mi12:20:411:00:419:4630:03
9:40
-0:12
15K
9.32 mi12:50:201:30:209:4229:39
9:33
-0:07
20K
12.43 mi13:20:362:00:369:4230:16
9:45
+0:12
Half
13.11 mi13:27:112:07:119:426:35
9:39
-0:06
25K
15.53 mi13:51:312:31:319:4524:20
10:02
+0:23
30K
18.64 mi14:25:173:05:179:5633:46
10:52
+0:50
20M
20.00 mi14:40:083:20:0810:0014:51
10:56
+0:04
21M
21.00 mi14:51:463:31:4610:0511:38
11:38
+0:42
35K
21.75 mi14:59:283:39:2810:057:42
10:18
-1:20
23M
23.00 mi15:13:143:53:1410:0813:46
11:00
+0:42
24M
24.00 mi15:23:524:03:5210:1010:38
10:38
-0:22
40K
24.85 mi15:32:564:12:5610:119:04
10:36
-0:02
25.2M
25.20 mi15:36:444:16:4410:113:48
11:01
+0:25
Finish
26.22 mi15:46:514:26:5110:1110:07
9:56
-1:05

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

9:33 /mi

Average Pace

10:11 /mi

Slowest Pace

11:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:17:18

51% of race

Time at Steady Pace

41:06

15% of race

Time at Slower Pace

1:28:27

33% of race

Average Pace: 10:11 /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 mi11:50:3830:389:5230:38
9:52
#23094
10K
6.21 mi12:20:411:00:419:4630:03
9:40
#23089
15K
9.32 mi12:50:201:30:209:4229:39
9:33
#22858
20K
12.43 mi13:20:362:00:369:4230:16
9:45
#22683
Half
13.11 mi13:27:112:07:119:426:35
9:39
#22685
25K
15.53 mi13:51:312:31:319:4524:20
10:02
#22587
30K
18.64 mi14:25:173:05:179:5633:46
10:52
#22665
20M
20.00 mi14:40:083:20:0810:0014:51
10:56
#22654
21M
21.00 mi14:51:463:31:4610:0511:38
11:38
#22628
35K
21.75 mi14:59:283:39:2810:057:42
10:18
#22589
23M
23.00 mi15:13:143:53:1410:0813:46
11:00
#22572
24M
24.00 mi15:23:524:03:5210:1010:38
10:38
#22555
40K
24.85 mi15:32:564:12:5610:119:04
10:36
#22517
25.2M
25.20 mi15:36:444:16:4410:113:48
11:01
#22489
Finish
26.22 mi15:46:514:26:5110:1110:07
9:56
#22456
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi230949443944322381(Top 84%)8999(Top 79%)8999(Top 184%)
10K6.21 mi3.10 mi23089+59412+319412+3122990(Top 86%)9327(Top 82%)9327(Top 191%)
15K9.32 mi3.11 mi22858+2319263+1499263+14922381(Top 84%)8999(Top 79%)8999(Top 184%)
20K12.43 mi3.11 mi22683+1759183+809183+8022268(Top 84%)8944(Top 78%)8944(Top 183%)
Half13.11 mi0.68 mi22685-29187-49187-422535(Top 85%)9098(Top 80%)9098(Top 186%)
25K15.53 mi2.42 mi22587+989149+389149+3822299(Top 84%)8996(Top 79%)8996(Top 184%)
30K18.64 mi3.11 mi22665-789214-659214-6522902(Top 86%)9407(Top 82%)9407(Top 193%)
20M20.00 mi1.36 mi22654+119223-99223-922583(Top 85%)9289(Top 81%)9289(Top 190%)
21M21.00 mi1.00 mi22628+269216+79216+722131(Top 83%)9070(Top 79%)9070(Top 186%)
35K21.75 mi0.75 mi22589+399198+189198+1821988(Top 83%)9046(Top 79%)9046(Top 185%)
23M23.00 mi1.25 mi22572+179196+29196+222337(Top 84%)9237(Top 81%)9237(Top 189%)
24M24.00 mi1.00 mi22555+179195+19195+122312(Top 84%)9264(Top 81%)9264(Top 190%)
40K24.85 mi0.85 mi22517+389178+179178+1721482(Top 81%)8890(Top 78%)8890(Top 182%)
25.2M25.20 mi0.35 mi22489+289166+129166+1220557(Top 77%)8359(Top 73%)8359(Top 171%)
Finish26.22 mi1.02 mi22456+339159+79159+721578(Top 81%)8899(Top 78%)8899(Top 182%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21stories
+97ft-345ft

Overall

22381

Females

8999

F18-39

8999

5K→10K

3.1 - 6.2 mi

Top 86%
×5stories
+79ft-138ft

Overall

22990

Females

9327

F18-39

9327

10K→15K

6.2 - 9.3 mi

Top 84%
×3stories
+67ft-78ft

Overall

22381

Females

8999

F18-39

8999

15K→20K

9.3 - 12.4 mi

Top 84%
×5stories
+106ft-86ft

Overall

22268

Females

8944

F18-39

8944

20K→Half

12.4 - 13.1 mi

Top 85%
×2stories
+19ft-37ft

Overall

22535

Females

9098

F18-39

9098

Half→25K

13.1 - 15.5 mi

Top 84%
×4stories
+66ft-88ft

Overall

22299

Females

8996

F18-39

8996

25K→30K

15.5 - 18.6 mi

Top 86%
×9stories
+181ft-148ft

Overall

22902

Females

9407

F18-39

9407

30K→20M

18.6 - 20.0 mi

Top 85%
×5stories
+64ft-50ft

Overall

22583

Females

9289

F18-39

9289

20M→21M

20.0 - 21.0 mi

Top 83%
×8stories
+106ft-24ft

Overall

22131

Females

9070

F18-39

9070

21M→35K

21.0 - 21.8 mi

Top 83%
×7stories
+17ft-86ft

Overall

21988

Females

9046

F18-39

9046

35K→23M

21.8 - 23.0 mi

Top 84%
×5stories
+23ft-63ft

Overall

22337

Females

9237

F18-39

9237

23M→24M

23.0 - 24.0 mi

Top 84%
×6stories
+12ft-82ft

Overall

22312

Females

9264

F18-39

9264

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21482

Females

8890

F18-39

8890

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

20557

Females

8359

F18-39

8359

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

21578

Females

8899

F18-39

8899

Passing Analysis

Category:
Athletes Passed
1421
Passed By
783
Net Change
+638
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23094
5K → 10K222217+5#23094#23089
10K → 15K29059+231#23089#22858
15K → 20K23459+175#22858#22683
20K → Half1618-2#22683#22685
Half → 25K14345+98#22685#22587
25K → 30K88166-78#22587#22665
30K → 20M6554+11#22665#22654
20M → 21M6640+26#22654#22628
21M → 35K5718+39#22628#22589
35K → 23M7255+17#22589#22572
23M → 24M3619+17#22572#22555
24M → 40K468+38#22555#22517
40K → 25.2M302+28#22517#22489
25.2M → Finish5623+33#22489#22456
TOTALS1421783+638
📊

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