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BOSTON MARATHON 2023

Stephanie Rosenthal

Bib: 27373•F

CO

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

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
10:05/mi
31:20
↑ 97↓ 3451.5%
10K· 6.21 mi
9:24/mi
1:00:33
↑ 79↓ 1380.4%
15K· 9.32 mi
9:32/mi
1:30:10
↑ 67↓ 78
20K· 12.43 mi
9:17/mi
1:59:00
↑ 106↓ 860.1%
Half· 13.11 mi
9:13/mi
2:05:17
↑ 19↓ 370.5%
25K· 15.53 mi
9:39/mi
2:28:42
↑ 66↓ 880.2%
30K· 18.64 mi
9:47/mi
2:59:07
↑ 181↓ 1480.2%
20M
10:42/mi
3:13:40
↑ 64↓ 500.2%
21M
10:28/mi
3:24:08
↑ 106↓ 241.6%
35K· 21.75 mi
10:07/mi
3:31:42
↑ 17↓ 861.7%
23M
11:28/mi
3:46:03
↑ 23↓ 630.6%
24M
10:03/mi
3:56:06
↓ 821.3%
40K· 24.85 mi
10:14/mi
4:04:51
↓ 200.3%
25.2M
11:16/mi
4:08:44
↑ 13↓ 160.2%
Finish· 26.22 mi
9:49/mi
4:18:44
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:05:17
Pace9:33 /mi
2nd Half
Distance13.11 mi
Time2:13:27
Pace10:11 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:2831:2010:0531:20
10:05
-
10K
6.21 mi12:21:411:00:339:4529:13
9:24
-0:41
15K
9.32 mi12:51:181:30:109:4029:37
9:32
+0:08
20K
12.43 mi13:20:081:59:009:3528:50
9:17
-0:15
Half
13.11 mi13:26:252:05:179:336:17
9:13
-0:04
25K
15.53 mi13:49:502:28:429:3423:25
9:39
+0:26
30K
18.64 mi14:20:152:59:079:3730:25
9:47
+0:08
20M
20.00 mi14:34:483:13:409:4114:33
10:42
+0:55
21M
21.00 mi14:45:163:24:089:4310:28
10:28
-0:14
35K
21.75 mi14:52:503:31:429:447:34
10:07
-0:21
23M
23.00 mi15:07:113:46:039:5014:21
11:28
+1:21
24M
24.00 mi15:17:143:56:069:5010:03
10:03
-1:25
40K
24.85 mi15:25:594:04:519:518:45
10:14
+0:11
25.2M
25.20 mi15:29:524:08:449:523:53
11:16
+1:02
Finish
26.22 mi15:39:524:18:449:5310:00
9:49
-1:27

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

9:13 /mi

Average Pace

9:53 /mi

Slowest Pace

11:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:22

45% of race

Time at Steady Pace

1:38:07

38% of race

Time at Slower Pace

43:15

17% of race

Average Pace: 9:52 /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 mi11:52:2831:2010:0531:20
10:05
#23644
10K
6.21 mi12:21:411:00:339:4529:13
9:24
#23019
15K
9.32 mi12:51:181:30:109:4029:37
9:32
#22802
20K
12.43 mi13:20:081:59:009:3528:50
9:17
#22320
Half
13.11 mi13:26:252:05:179:336:17
9:13
#22272
25K
15.53 mi13:49:502:28:429:3423:25
9:39
#22103
30K
18.64 mi14:20:152:59:079:3730:25
9:47
#21776
20M
20.00 mi14:34:483:13:409:4114:33
10:42
#21826
21M
21.00 mi14:45:163:24:089:4310:28
10:28
#21718
35K
21.75 mi14:52:503:31:429:447:34
10:07
#21716
23M
23.00 mi15:07:113:46:039:5014:21
11:28
#21832
24M
24.00 mi15:17:143:56:069:5010:03
10:03
#21793
40K
24.85 mi15:25:594:04:519:518:45
10:14
#21738
25.2M
25.20 mi15:29:524:08:449:523:53
11:16
#21722
Finish
26.22 mi15:39:524:18:449:5310:00
9:49
#21706
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi236449721972122352(Top 84%)8983(Top 79%)8983(Top 184%)
10K6.21 mi3.10 mi23019+6259374+3479374+34722224(Top 83%)8935(Top 78%)8935(Top 183%)
15K9.32 mi3.11 mi22802+2179233+1419233+14122352(Top 84%)8983(Top 79%)8983(Top 184%)
20K12.43 mi3.11 mi22320+4828993+2408993+24020912(Top 79%)8182(Top 72%)8182(Top 168%)
Half13.11 mi0.68 mi22272+488971+228971+2221232(Top 80%)8380(Top 73%)8380(Top 172%)
25K15.53 mi2.42 mi22103+1698885+868885+8621333(Top 80%)8459(Top 74%)8459(Top 173%)
30K18.64 mi3.11 mi21776+3278706+1798706+17920431(Top 77%)8014(Top 70%)8014(Top 164%)
20M20.00 mi1.36 mi21826-508745-398745-3922174(Top 83%)9077(Top 79%)9077(Top 186%)
21M21.00 mi1.00 mi21718+1088698+478698+4719515(Top 73%)7657(Top 67%)7657(Top 157%)
35K21.75 mi0.75 mi21716+28702-48702-421601(Top 81%)8825(Top 77%)8825(Top 181%)
23M23.00 mi1.25 mi21832-1168782-808782-8023187(Top 87%)9685(Top 85%)9685(Top 198%)
24M24.00 mi1.00 mi21793+398771+118771+1120942(Top 79%)8512(Top 75%)8512(Top 174%)
40K24.85 mi0.85 mi21738+558757+148757+1420598(Top 77%)8383(Top 73%)8383(Top 172%)
25.2M25.20 mi0.35 mi21722+168752+58752+521070(Top 79%)8629(Top 76%)8629(Top 177%)
Finish26.22 mi1.02 mi21706+168744+88744+821214(Top 80%)8671(Top 76%)8671(Top 178%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21story building
+97ft-345ft

Overall

22352

Females

8983

F18-39

8983

5K→10K

3.1 - 6.2 mi

Top 83%
×5story building
+79ft-138ft

Overall

22224

Females

8935

F18-39

8935

10K→15K

6.2 - 9.3 mi

Top 84%
×3story building
+67ft-78ft

Overall

22352

Females

8983

F18-39

8983

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

20912

Females

8182

F18-39

8182

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

21232

Females

8380

F18-39

8380

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

21333

Females

8459

F18-39

8459

25K→30K

15.5 - 18.6 mi

Top 77%
×9story building
+181ft-148ft

Overall

20431

Females

8014

F18-39

8014

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

22174

Females

9077

F18-39

9077

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

19515

Females

7657

F18-39

7657

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

21601

Females

8825

F18-39

8825

35K→23M

21.8 - 23.0 mi

Top 87%
×5story building
+23ft-63ft

Overall

23187

Females

9685

F18-39

9685

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

20942

Females

8512

F18-39

8512

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

20598

Females

8383

F18-39

8383

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

21070

Females

8629

F18-39

8629

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

21214

Females

8671

F18-39

8671

Passing Analysis

Category:
Athletes Passed
2446
Passed By
508
Net Change
+1938
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23644
5K → 10K65934+625#23644#23019
10K → 15K27962+217#23019#22802
15K → 20K4842+482#22802#22320
20K → Half524+48#22320#22272
Half → 25K19930+169#22272#22103
25K → 30K34619+327#22103#21776
30K → 20M55105-50#21776#21826
20M → 21M12113+108#21826#21718
21M → 35K3230+2#21718#21716
35K → 23M34150-116#21716#21832
23M → 24M5617+39#21832#21793
24M → 40K6712+55#21793#21738
40K → 25.2M248+16#21738#21722
25.2M → Finish3822+16#21722#21706
TOTALS2446508+1938
📊

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