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BOSTON MARATHON 2023

Jennifer Haskell

Bib: 27790•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
9:07/mi
28:21
↑ 97↓ 3451.5%
10K· 6.21 mi
8:43/mi
55:26
↑ 79↓ 1380.4%
15K· 9.32 mi
8:46/mi
1:22:40
↑ 67↓ 78
20K· 12.43 mi
8:45/mi
1:49:50
↑ 106↓ 860.1%
Half· 13.11 mi
8:37/mi
1:55:43
↑ 19↓ 370.5%
25K· 15.53 mi
9:00/mi
2:17:33
↑ 66↓ 880.2%
30K· 18.64 mi
9:08/mi
2:45:57
↑ 181↓ 1480.2%
20M
9:06/mi
2:58:19
↑ 64↓ 500.2%
21M
9:59/mi
3:08:18
↑ 106↓ 241.6%
35K· 21.75 mi
8:29/mi
3:14:39
↑ 17↓ 861.7%
23M
9:12/mi
3:26:10
↑ 23↓ 630.6%
24M
8:52/mi
3:35:02
↓ 821.3%
40K· 24.85 mi
9:18/mi
3:42:59
↓ 200.3%
25.2M
9:52/mi
3:46:23
↑ 13↓ 160.2%
Finish· 26.22 mi
9:06/mi
3:55:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:43
Pace8:50 /mi
2nd Half
Distance13.11 mi
Time1:59:56
Pace9:09 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:1628:219:0728:21
9:07
-
10K
6.21 mi12:12:2155:268:5527:05
8:43
-0:24
15K
9.32 mi12:39:351:22:408:5227:14
8:46
+0:03
20K
12.43 mi13:06:451:49:508:5027:10
8:45
-0:01
Half
13.11 mi13:12:381:55:438:505:53
8:37
-0:08
25K
15.53 mi13:34:282:17:338:5121:50
9:00
+0:23
30K
18.64 mi14:02:522:45:578:5428:24
9:08
+0:08
20M
20.00 mi14:15:142:58:198:5512:22
9:06
-0:02
21M
21.00 mi14:25:133:08:188:589:59
9:59
+0:53
35K
21.75 mi14:31:343:14:398:576:21
8:29
-1:30
23M
23.00 mi14:43:053:26:108:5811:31
9:12
+0:43
24M
24.00 mi14:51:573:35:028:588:52
8:52
-0:20
40K
24.85 mi14:59:543:42:598:587:57
9:18
+0:26
25.2M
25.20 mi15:03:183:46:238:593:24
9:52
+0:34
Finish
26.22 mi15:12:343:55:399:009:16
9:06
-0:46

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

8:29 /mi

Average Pace

9:00 /mi

Slowest Pace

9:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:42:16

94% of race

Time at Steady Pace

13:23

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:59 /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 mi11:45:1628:219:0728:21
9:07
#20954
10K
6.21 mi12:12:2155:268:5527:05
8:43
#20312
15K
9.32 mi12:39:351:22:408:5227:14
8:46
#19973
20K
12.43 mi13:06:451:49:508:5027:10
8:45
#19526
Half
13.11 mi13:12:381:55:438:505:53
8:37
#19474
25K
15.53 mi13:34:282:17:338:5121:50
9:00
#19377
30K
18.64 mi14:02:522:45:578:5428:24
9:08
#19120
20M
20.00 mi14:15:142:58:198:5512:22
9:06
#18954
21M
21.00 mi14:25:133:08:188:589:59
9:59
#18899
35K
21.75 mi14:31:343:14:398:576:21
8:29
#18756
23M
23.00 mi14:43:053:26:108:5811:31
9:12
#18637
24M
24.00 mi14:51:573:35:028:588:52
8:52
#18543
40K
24.85 mi14:59:543:42:598:587:57
9:18
#18504
25.2M
25.20 mi15:03:183:46:238:593:24
9:52
#18479
Finish
26.22 mi15:12:343:55:399:009:16
9:06
#18493
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi209548343834319338(Top 73%)7291(Top 64%)7291(Top 401%)
10K6.21 mi3.10 mi20312+6427925+4187925+41819515(Top 73%)7393(Top 65%)7393(Top 407%)
15K9.32 mi3.11 mi19973+3397723+2027723+20219338(Top 73%)7291(Top 64%)7291(Top 401%)
20K12.43 mi3.11 mi19526+4477443+2807443+28018389(Top 69%)6729(Top 59%)6729(Top 370%)
Half13.11 mi0.68 mi19474+527416+277416+2718516(Top 70%)6793(Top 59%)6793(Top 374%)
25K15.53 mi2.42 mi19377+977345+717345+7118983(Top 71%)7119(Top 62%)7119(Top 392%)
30K18.64 mi3.11 mi19120+2577209+1367209+13617892(Top 67%)6586(Top 58%)6586(Top 362%)
20M20.00 mi1.36 mi18954+1667134+757134+7517093(Top 64%)6223(Top 54%)6223(Top 342%)
21M21.00 mi1.00 mi18899+557105+297105+2917989(Top 68%)6754(Top 59%)6754(Top 372%)
35K21.75 mi0.75 mi18756+1437033+727033+7215320(Top 58%)5324(Top 47%)5324(Top 293%)
23M23.00 mi1.25 mi18637+1196974+596974+5917073(Top 64%)6335(Top 55%)6335(Top 349%)
24M24.00 mi1.00 mi18543+946931+436931+4316626(Top 62%)6156(Top 54%)6156(Top 339%)
40K24.85 mi0.85 mi18504+396918+136918+1317541(Top 66%)6706(Top 59%)6706(Top 369%)
25.2M25.20 mi0.35 mi18479+256914+46914+416876(Top 63%)6367(Top 56%)6367(Top 350%)
Finish26.22 mi1.02 mi18493-146930-166930-1618453(Top 69%)7149(Top 63%)7149(Top 393%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

19338

Females

7291

F45-49

7291

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

19515

Females

7393

F45-49

7393

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

19338

Females

7291

F45-49

7291

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

18389

Females

6729

F45-49

6729

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

18516

Females

6793

F45-49

6793

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

18983

Females

7119

F45-49

7119

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

17892

Females

6586

F45-49

6586

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

17093

Females

6223

F45-49

6223

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

17989

Females

6754

F45-49

6754

21M→35K

21.0 - 21.8 mi

Top 58%
×7story building
+17ft-86ft

Overall

15320

Females

5324

F45-49

5324

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

17073

Females

6335

F45-49

6335

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

16626

Females

6156

F45-49

6156

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

17541

Females

6706

F45-49

6706

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

16876

Females

6367

F45-49

6367

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2story building
+22ft-21ft

Overall

18453

Females

7149

F45-49

7149

Passing Analysis

Category:
Athletes Passed
2991
Passed By
530
Net Change
+2461
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20954
5K → 10K73896+642#20954#20312
10K → 15K41172+339#20312#19973
15K → 20K46821+447#19973#19526
20K → Half608+52#19526#19474
Half → 25K16770+97#19474#19377
25K → 30K31154+257#19377#19120
30K → 20M17812+166#19120#18954
20M → 21M11358+55#18954#18899
21M → 35K1452+143#18899#18756
35K → 23M14223+119#18756#18637
23M → 24M10814+94#18637#18543
24M → 40K6930+39#18543#18504
40K → 25.2M3510+25#18504#18479
25.2M → Finish4660-14#18479#18493
TOTALS2991530+2461
📊

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