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BOSTON MARATHON 2023

Mollie Rosing

Bib: 15017•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 45%
Gender (Female)
#0 / 11423
Top 28%
Masters (Masters Women)
#0 / 6539
Top 14%
Division (F45-49)
#0 / 1817
Top 15%
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
7:43/mi
23:59
↑ 97↓ 3451.5%
10K· 6.21 mi
7:55/mi
48:35
↑ 79↓ 1380.4%
15K· 9.32 mi
7:58/mi
1:13:21
↑ 67↓ 78
20K· 12.43 mi
7:58/mi
1:38:05
↑ 106↓ 860.1%
Half· 13.11 mi
7:59/mi
1:43:32
↑ 19↓ 370.5%
25K· 15.53 mi
8:03/mi
2:03:02
↑ 66↓ 880.2%
30K· 18.64 mi
8:08/mi
2:28:17
↑ 181↓ 1480.2%
20M
8:06/mi
2:39:18
↑ 64↓ 500.2%
21M
8:27/mi
2:47:45
↑ 106↓ 241.6%
35K· 21.75 mi
7:56/mi
2:53:41
↑ 17↓ 861.7%
23M
8:07/mi
3:03:51
↑ 23↓ 630.6%
24M
7:56/mi
3:11:47
↓ 821.3%
40K· 24.85 mi
8:04/mi
3:18:41
↓ 200.3%
25.2M
8:27/mi
3:21:36
↑ 13↓ 160.2%
Finish· 26.22 mi
7:31/mi
3:29:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:32
Pace7:54 /mi
2nd Half
Distance13.11 mi
Time1:45:44
Pace8:04 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:5623:597:4323:59
7:43
-
10K
6.21 mi11:19:3248:357:4924:36
7:55
+0:12
15K
9.32 mi11:44:181:13:217:5224:46
7:58
+0:03
20K
12.43 mi12:09:021:38:057:5424:44
7:58
0:00
Half
13.11 mi12:14:291:43:327:545:27
7:59
+0:01
25K
15.53 mi12:33:592:03:027:5519:30
8:03
+0:04
30K
18.64 mi12:59:142:28:177:5725:15
8:08
+0:05
20M
20.00 mi13:10:152:39:187:5811:01
8:06
-0:02
21M
21.00 mi13:18:422:47:457:598:27
8:27
+0:21
35K
21.75 mi13:24:382:53:417:595:56
7:56
-0:31
23M
23.00 mi13:34:483:03:518:0010:10
8:07
+0:11
24M
24.00 mi13:42:443:11:477:597:56
7:56
-0:11
40K
24.85 mi13:49:383:18:418:006:54
8:04
+0:08
25.2M
25.20 mi13:52:333:21:368:002:55
8:27
+0:23
Finish
26.22 mi14:00:133:29:167:597:40
7:31
-0:56

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

7:59 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:54

95% of race

Time at Steady Pace

11:22

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:59 /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 mi10:54:5623:597:4323:59
7:43
#11644
10K
6.21 mi11:19:3248:357:4924:36
7:55
#12879
15K
9.32 mi11:44:181:13:217:5224:46
7:58
#13325
20K
12.43 mi12:09:021:38:057:5424:44
7:58
#13256
Half
13.11 mi12:14:291:43:327:545:27
7:59
#13299
25K
15.53 mi12:33:592:03:027:5519:30
8:03
#13227
30K
18.64 mi12:59:142:28:177:5725:15
8:08
#12943
20M
20.00 mi13:10:152:39:187:5811:01
8:06
#12748
21M
21.00 mi13:18:422:47:457:598:27
8:27
#12561
35K
21.75 mi13:24:382:53:417:595:56
7:56
#12514
23M
23.00 mi13:34:483:03:518:0010:10
8:07
#12404
24M
24.00 mi13:42:443:11:477:597:56
7:56
#12313
40K
24.85 mi13:49:383:18:418:006:54
8:04
#12240
25.2M
25.20 mi13:52:333:21:368:002:55
8:27
#12170
Finish
26.22 mi14:00:133:29:167:597:40
7:31
#12035
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi116442668266814159(Top 53%)4176(Top 37%)4176(Top 230%)
10K6.21 mi3.10 mi12879-12353367-6993367-69914131(Top 53%)4127(Top 36%)4127(Top 227%)
15K9.32 mi3.11 mi13325-4463646-2793646-27914159(Top 53%)4176(Top 37%)4176(Top 230%)
20K12.43 mi3.11 mi13256+693634+123634+1213110(Top 49%)3603(Top 32%)3603(Top 198%)
Half13.11 mi0.68 mi13299-433661-273661-2714275(Top 54%)4219(Top 37%)4219(Top 232%)
25K15.53 mi2.42 mi13227+723634+273634+2713092(Top 49%)3676(Top 32%)3676(Top 202%)
30K18.64 mi3.11 mi12943+2843512+1223512+12211842(Top 44%)3090(Top 27%)3090(Top 170%)
20M20.00 mi1.36 mi12748+1953423+893423+8911100(Top 42%)2789(Top 24%)2789(Top 153%)
21M21.00 mi1.00 mi12561+1873332+913332+9110219(Top 38%)2494(Top 22%)2494(Top 137%)
35K21.75 mi0.75 mi12514+473320+123320+1211653(Top 44%)3232(Top 28%)3232(Top 178%)
23M23.00 mi1.25 mi12404+1103279+413279+4110635(Top 40%)2838(Top 25%)2838(Top 156%)
24M24.00 mi1.00 mi12313+913251+283251+2810807(Top 41%)2986(Top 26%)2986(Top 164%)
40K24.85 mi0.85 mi12240+733223+283223+2810548(Top 40%)2910(Top 25%)2910(Top 160%)
25.2M25.20 mi0.35 mi12170+703198+253198+259346(Top 35%)2405(Top 21%)2405(Top 132%)
Finish26.22 mi1.02 mi12035+1353146+523146+528761(Top 33%)2141(Top 19%)2141(Top 118%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

14159

Females

4176

F45-49

4176

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

14131

Females

4127

F45-49

4127

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

14159

Females

4176

F45-49

4176

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13110

Females

3603

F45-49

3603

20K→Half

12.4 - 13.1 mi

Top 54%
×2story building
+19ft-37ft

Overall

14275

Females

4219

F45-49

4219

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13092

Females

3676

F45-49

3676

25K→30K

15.5 - 18.6 mi

Top 44%
×9story building
+181ft-148ft

Overall

11842

Females

3090

F45-49

3090

30K→20M

18.6 - 20.0 mi

Top 42%
×5story building
+64ft-50ft

Overall

11100

Females

2789

F45-49

2789

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10219

Females

2494

F45-49

2494

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

11653

Females

3232

F45-49

3232

35K→23M

21.8 - 23.0 mi

Top 40%
×5story building
+23ft-63ft

Overall

10635

Females

2838

F45-49

2838

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

10807

Females

2986

F45-49

2986

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10548

Females

2910

F45-49

2910

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9346

Females

2405

F45-49

2405

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

8761

Females

2141

F45-49

2141

Passing Analysis

Category:
Athletes Passed
1960
Passed By
2351
Net Change
-391
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11644
5K → 10K431278-1235#11644#12879
10K → 15K81527-446#12879#13325
15K → 20K221152+69#13325#13256
20K → Half1760-43#13256#13299
Half → 25K174102+72#13299#13227
25K → 30K35066+284#13227#12943
30K → 20M21318+195#12943#12748
20M → 21M20518+187#12748#12561
21M → 35K7124+47#12561#12514
35K → 23M14636+110#12514#12404
23M → 24M10716+91#12404#12313
24M → 40K10027+73#12313#12240
40K → 25.2M788+70#12240#12170
25.2M → Finish15419+135#12170#12035
TOTALS19602351-391
📊

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