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BOSTON MARATHON 2023

Jessie Cook

Bib: 19500•F

ON

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0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 36%
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
8:00/mi
24:51
↑ 97↓ 3451.5%
10K· 6.21 mi
7:53/mi
49:21
↑ 79↓ 1380.4%
15K· 9.32 mi
7:53/mi
1:13:51
↑ 67↓ 78
20K· 12.43 mi
7:58/mi
1:38:36
↑ 106↓ 860.1%
Half· 13.11 mi
7:52/mi
1:43:58
↑ 19↓ 370.5%
25K· 15.53 mi
8:03/mi
2:03:30
↑ 66↓ 880.2%
30K· 18.64 mi
8:25/mi
2:29:40
↑ 181↓ 1480.2%
20M
8:32/mi
2:41:16
↑ 64↓ 500.2%
21M
9:01/mi
2:50:17
↑ 106↓ 241.6%
35K· 21.75 mi
8:36/mi
2:56:43
↑ 17↓ 861.7%
23M
8:42/mi
3:07:36
↑ 23↓ 630.6%
24M
8:23/mi
3:15:59
↓ 821.3%
40K· 24.85 mi
8:40/mi
3:23:24
↓ 200.3%
25.2M
9:23/mi
3:26:38
↑ 13↓ 160.2%
Finish· 26.22 mi
8:14/mi
3:35:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:58
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:51:03
Pace8:28 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:5124:518:0024:51
8:00
-
10K
6.21 mi11:41:2149:217:5724:30
7:53
-0:07
15K
9.32 mi12:05:511:13:517:5524:30
7:53
0:00
20K
12.43 mi12:30:361:38:367:5624:45
7:58
+0:05
Half
13.11 mi12:35:581:43:587:565:22
7:52
-0:06
25K
15.53 mi12:55:302:03:307:5719:32
8:03
+0:11
30K
18.64 mi13:21:402:29:408:0226:10
8:25
+0:22
20M
20.00 mi13:33:162:41:168:0411:36
8:32
+0:07
21M
21.00 mi13:42:172:50:178:079:01
9:01
+0:29
35K
21.75 mi13:48:432:56:438:086:26
8:36
-0:25
23M
23.00 mi13:59:363:07:368:0910:53
8:42
+0:06
24M
24.00 mi14:07:593:15:598:108:23
8:23
-0:19
40K
24.85 mi14:15:243:23:248:117:25
8:40
+0:17
25.2M
25.20 mi14:18:383:26:388:123:14
9:23
+0:43
Finish
26.22 mi14:27:013:35:018:128:23
8:14
-1:09

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

7:52 /mi

Average Pace

8:12 /mi

Slowest Pace

9:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:04:28

86% of race

Time at Steady Pace

27:19

13% of race

Time at Slower Pace

3:14

2% of race

Average Pace: 8:12 /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 mi11:16:5124:518:0024:51
8:00
#14018
10K
6.21 mi11:41:2149:217:5724:30
7:53
#13934
15K
9.32 mi12:05:511:13:517:5524:30
7:53
#13765
20K
12.43 mi12:30:361:38:367:5624:45
7:58
#13580
Half
13.11 mi12:35:581:43:587:565:22
7:52
#13565
25K
15.53 mi12:55:302:03:307:5719:32
8:03
#13471
30K
18.64 mi13:21:402:29:408:0226:10
8:25
#13504
20M
20.00 mi13:33:162:41:168:0411:36
8:32
#13543
21M
21.00 mi13:42:172:50:178:079:01
9:01
#13522
35K
21.75 mi13:48:432:56:438:086:26
8:36
#13620
23M
23.00 mi13:59:363:07:368:0910:53
8:42
#13641
24M
24.00 mi14:07:593:15:598:108:23
8:23
#13629
40K
24.85 mi14:15:243:23:248:117:25
8:40
#13634
25.2M
25.20 mi14:18:383:26:388:123:14
9:23
#13647
Finish
26.22 mi14:27:013:35:018:128:23
8:14
#13634
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi140184044404413414(Top 50%)3737(Top 33%)3737(Top 77%)
10K6.21 mi3.10 mi13934+843999+453999+4513876(Top 52%)3968(Top 35%)3968(Top 81%)
15K9.32 mi3.11 mi13765+1693922+773922+7713414(Top 50%)3737(Top 33%)3737(Top 77%)
20K12.43 mi3.11 mi13580+1853831+913831+9113170(Top 49%)3640(Top 32%)3640(Top 75%)
Half13.11 mi0.68 mi13565+153819+123819+1213392(Top 50%)3741(Top 33%)3741(Top 77%)
25K15.53 mi2.42 mi13471+943789+303789+3013214(Top 50%)3757(Top 33%)3757(Top 77%)
30K18.64 mi3.11 mi13504-333843-543843-5413832(Top 52%)4231(Top 37%)4231(Top 87%)
20M20.00 mi1.36 mi13543-393886-433886-4313857(Top 52%)4326(Top 38%)4326(Top 89%)
21M21.00 mi1.00 mi13522+213892-63892-613529(Top 51%)4224(Top 37%)4224(Top 86%)
35K21.75 mi0.75 mi13620-983956-643956-6415863(Top 60%)5598(Top 49%)5598(Top 115%)
23M23.00 mi1.25 mi13641-214000-444000-4414343(Top 54%)4816(Top 42%)4816(Top 99%)
24M24.00 mi1.00 mi13629+124019-194019-1913779(Top 52%)4537(Top 40%)4537(Top 93%)
40K24.85 mi0.85 mi13634-54042-234042-2314386(Top 54%)4958(Top 43%)4958(Top 102%)
25.2M25.20 mi0.35 mi13647-134054-124054-1214591(Top 55%)5057(Top 44%)5057(Top 104%)
Finish26.22 mi1.02 mi13634+134069-154069-1513634(Top 51%)4540(Top 40%)4540(Top 93%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

13414

Females

3737

F18-39

3737

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

13876

Females

3968

F18-39

3968

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

13414

Females

3737

F18-39

3737

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13170

Females

3640

F18-39

3640

20K→Half

12.4 - 13.1 mi

Top 50%
×2story building
+19ft-37ft

Overall

13392

Females

3741

F18-39

3741

Half→25K

13.1 - 15.5 mi

Top 50%
×4story building
+66ft-88ft

Overall

13214

Females

3757

F18-39

3757

25K→30K

15.5 - 18.6 mi

Top 52%
×9story building
+181ft-148ft

Overall

13832

Females

4231

F18-39

4231

30K→20M

18.6 - 20.0 mi

Top 52%
×5story building
+64ft-50ft

Overall

13857

Females

4326

F18-39

4326

20M→21M

20.0 - 21.0 mi

Top 51%
×8story building
+106ft-24ft

Overall

13529

Females

4224

F18-39

4224

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

15863

Females

5598

F18-39

5598

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

14343

Females

4816

F18-39

4816

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

13779

Females

4537

F18-39

4537

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14386

Females

4958

F18-39

4958

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

14591

Females

5057

F18-39

5057

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

13634

Females

4540

F18-39

4540

Passing Analysis

Category:
Athletes Passed
1809
Passed By
1425
Net Change
+384
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14018
5K → 10K332248+84#14018#13934
10K → 15K279110+169#13934#13765
15K → 20K26681+185#13765#13580
20K → Half4227+15#13580#13565
Half → 25K17379+94#13565#13471
25K → 30K181214-33#13471#13504
30K → 20M75114-39#13504#13543
20M → 21M10382+21#13543#13522
21M → 35K37135-98#13522#13620
35K → 23M80101-21#13620#13641
23M → 24M7260+12#13641#13629
24M → 40K6671-5#13629#13634
40K → 25.2M3144-13#13634#13647
25.2M → Finish7259+13#13647#13634
TOTALS18091425+384
📊

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