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BOSTON MARATHON 2023

Jennifer Sullivan

Bib: 26666•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
9:43/mi
30:11
↑ 97↓ 3451.5%
10K· 6.21 mi
9:08/mi
58:33
↑ 79↓ 1380.4%
15K· 9.32 mi
9:24/mi
1:27:46
↑ 67↓ 78
20K· 12.43 mi
9:18/mi
1:56:41
↑ 106↓ 860.1%
Half· 13.11 mi
9:27/mi
2:03:08
↑ 19↓ 370.5%
25K· 15.53 mi
9:42/mi
2:26:38
↑ 66↓ 880.2%
30K· 18.64 mi
11:02/mi
3:00:56
↑ 181↓ 1480.2%
20M
10:56/mi
3:15:47
↑ 64↓ 500.2%
21M
13:56/mi
3:29:43
↑ 106↓ 241.6%
35K· 21.75 mi
11:12/mi
3:38:06
↑ 17↓ 861.7%
23M
12:08/mi
3:53:18
↑ 23↓ 630.6%
24M
11:10/mi
4:04:28
↓ 821.3%
40K· 24.85 mi
11:48/mi
4:14:33
↓ 200.3%
25.2M
11:27/mi
4:18:30
↑ 13↓ 160.2%
Finish· 26.22 mi
9:52/mi
4:28:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:08
Pace9:24 /mi
2nd Half
Distance13.11 mi
Time2:25:25
Pace11:06 /mi
📊Positive Split: 18.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:1730:119:4330:11
9:43
-
10K
6.21 mi12:17:3958:339:2528:22
9:08
-0:35
15K
9.32 mi12:46:521:27:469:2529:13
9:24
+0:16
20K
12.43 mi13:15:471:56:419:2328:55
9:18
-0:06
Half
13.11 mi13:22:142:03:089:246:27
9:27
+0:09
25K
15.53 mi13:45:442:26:389:2623:30
9:42
+0:15
30K
18.64 mi14:20:023:00:569:4234:18
11:02
+1:20
20M
20.00 mi14:34:533:15:479:4714:51
10:56
-0:06
21M
21.00 mi14:48:493:29:439:5913:56
13:56
+3:00
35K
21.75 mi14:57:123:38:0610:028:23
11:12
-2:44
23M
23.00 mi15:12:243:53:1810:0915:12
12:08
+0:56
24M
24.00 mi15:23:344:04:2810:1111:10
11:10
-0:58
40K
24.85 mi15:33:394:14:3310:1410:05
11:48
+0:38
25.2M
25.20 mi15:37:364:18:3010:153:57
11:27
-0:21
Finish
26.22 mi15:47:394:28:3310:1510:03
9:52
-1:35

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

9:08 /mi

Average Pace

10:15 /mi

Slowest Pace

13:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:41

58% of race

Time at Steady Pace

1:12:39

27% of race

Time at Slower Pace

39:13

15% of race

Average Pace: 10:15 /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 mi11:49:1730:119:4330:11
9:43
#22701
10K
6.21 mi12:17:3958:339:2528:22
9:08
#22127
15K
9.32 mi12:46:521:27:469:2529:13
9:24
#22035
20K
12.43 mi13:15:471:56:419:2328:55
9:18
#21773
Half
13.11 mi13:22:142:03:089:246:27
9:27
#21778
25K
15.53 mi13:45:442:26:389:2623:30
9:42
#21692
30K
18.64 mi14:20:023:00:569:4234:18
11:02
#22081
20M
20.00 mi14:34:533:15:479:4714:51
10:56
#22129
21M
21.00 mi14:48:493:29:439:5913:56
13:56
#22385
35K
21.75 mi14:57:123:38:0610:028:23
11:12
#22440
23M
23.00 mi15:12:243:53:1810:0915:12
12:08
#22578
24M
24.00 mi15:23:344:04:2810:1111:10
11:10
#22607
40K
24.85 mi15:33:394:14:3310:1410:05
11:48
#22663
25.2M
25.20 mi15:37:364:18:3010:153:57
11:27
#22650
Finish
26.22 mi15:47:394:28:3310:1510:03
9:52
#22604
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi227019235923521974(Top 83%)8777(Top 77%)8777(Top 483%)
10K6.21 mi3.10 mi22127+5748920+3158920+31521409(Top 80%)8506(Top 74%)8506(Top 468%)
15K9.32 mi3.11 mi22035+928859+618859+6121974(Top 83%)8777(Top 77%)8777(Top 483%)
20K12.43 mi3.11 mi21773+2628697+1628697+16221005(Top 79%)8236(Top 72%)8236(Top 453%)
Half13.11 mi0.68 mi21778-58696+18696+122015(Top 83%)8801(Top 77%)8801(Top 484%)
25K15.53 mi2.42 mi21692+868650+468650+4621438(Top 81%)8530(Top 75%)8530(Top 469%)
30K18.64 mi3.11 mi22081-3898881-2318881-23123150(Top 87%)9542(Top 84%)9542(Top 525%)
20M20.00 mi1.36 mi22129-488922-418922-4122585(Top 85%)9291(Top 81%)9291(Top 511%)
21M21.00 mi1.00 mi22385-2569080-1589080-15824975(Top 94%)10599(Top 93%)10599(Top 583%)
35K21.75 mi0.75 mi22440-559112-329112-3223661(Top 89%)9967(Top 87%)9967(Top 549%)
23M23.00 mi1.25 mi22578-1389198-869198-8624175(Top 91%)10223(Top 89%)10223(Top 563%)
24M24.00 mi1.00 mi22607-299225-279225-2723345(Top 88%)9822(Top 86%)9822(Top 541%)
40K24.85 mi0.85 mi22663-569262-379262-3723631(Top 89%)10009(Top 88%)10009(Top 551%)
25.2M25.20 mi0.35 mi22650+139260+29260+221497(Top 81%)8863(Top 78%)8863(Top 488%)
Finish26.22 mi1.02 mi22604+469243+179243+1721372(Top 80%)8765(Top 77%)8765(Top 482%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

21974

Females

8777

F45-49

8777

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

21409

Females

8506

F45-49

8506

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

21974

Females

8777

F45-49

8777

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

21005

Females

8236

F45-49

8236

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

22015

Females

8801

F45-49

8801

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

21438

Females

8530

F45-49

8530

25K→30K

15.5 - 18.6 mi

Top 87%
×9story building
+181ft-148ft

Overall

23150

Females

9542

F45-49

9542

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

22585

Females

9291

F45-49

9291

20M→21M

20.0 - 21.0 mi

Top 94%
×8story building
+106ft-24ft

Overall

24975

Females

10599

F45-49

10599

21M→35K

21.0 - 21.8 mi

Top 89%
×7story building
+17ft-86ft

Overall

23661

Females

9967

F45-49

9967

35K→23M

21.8 - 23.0 mi

Top 91%
×5story building
+23ft-63ft

Overall

24175

Females

10223

F45-49

10223

23M→24M

23.0 - 24.0 mi

Top 88%
×6story building
+12ft-82ft

Overall

23345

Females

9822

F45-49

9822

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

23631

Females

10009

F45-49

10009

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

21497

Females

8863

F45-49

8863

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

21372

Females

8765

F45-49

8765

Passing Analysis

Category:
Athletes Passed
1589
Passed By
1492
Net Change
+97
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22701
5K → 10K63157+574#22701#22127
10K → 15K222130+92#22127#22035
15K → 20K30139+262#22035#21773
20K → Half2227-5#21773#21778
Half → 25K13953+86#21778#21692
25K → 30K51440-389#21692#22081
30K → 20M53101-48#22081#22129
20M → 21M8264-256#22129#22385
21M → 35K2075-55#22385#22440
35K → 23M27165-138#22440#22578
23M → 24M1948-29#22578#22607
24M → 40K1672-56#22607#22663
40K → 25.2M229+13#22663#22650
25.2M → Finish5812+46#22650#22604
TOTALS15891492+97
📊

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