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BOSTON MARATHON 2023

Emma Thompson

Bib: 4129•F

BC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 16%
Gender (Female)
#0 / 11423
Top 3%
Division (F18-39)
#0 / 4884
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:00
Rank: #4269
Start → 5K
6:46/mi
21:00 split
10K· 6.21 mi
41:42
Rank: #4105 (+164)
5K → 10K
6:40/mi
20:42 split
15K· 9.32 mi
1:02:26
Rank: #4009 (+96)
10K → 15K
6:40/mi
20:44 split
20K· 12.43 mi
1:23:29
Rank: #4030 (-21)
15K → 20K
6:47/mi
21:03 split
Half· 13.11 mi
1:27:59
Rank: #4000 (+30)
20K → Half
6:36/mi
4:30 split
25K· 15.53 mi
1:44:45
Rank: #4160 (-160)
Half → 25K
6:55/mi
16:46 split
30K· 18.64 mi
2:06:48
Rank: #4333 (-173)
25K → 30K
7:06/mi
22:03 split
20M
2:16:28
Rank: #4359 (-26)
30K → 20M
7:07/mi
9:40 split
21M
2:23:52
Rank: #4326 (+33)
20M → 21M
7:24/mi
7:24 split
35K· 21.75 mi
2:28:59
Rank: #4317 (+9)
21M → 35K
6:50/mi
5:07 split
23M
2:38:03
Rank: #4369 (-52)
35K → 23M
7:14/mi
9:04 split
24M
2:45:04
Rank: #4397 (-28)
23M → 24M
7:01/mi
7:01 split
40K· 24.85 mi
2:51:03
Rank: #4369 (+28)
24M → 40K
7:00/mi
5:59 split
25.2M
2:53:36
Rank: #4336 (+33)
40K → 25.2M
7:24/mi
2:33 split
Finish· 26.22 mi
3:00:29
Rank: #4304 (+32)
25.2M → Finish
6:45/mi
6:53 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:59
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:32:30
Pace7:03 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0721:006:4621:00
6:46
-
10K
6.21 mi10:43:4941:426:4320:42
6:40
-0:06
15K
9.32 mi11:04:331:02:266:4220:44
6:40
0:00
20K
12.43 mi11:25:361:23:296:4321:03
6:47
+0:07
Half
13.11 mi11:30:061:27:596:434:30
6:36
-0:11
25K
15.53 mi11:46:521:44:456:4516:46
6:55
+0:19
30K
18.64 mi12:08:552:06:486:4822:03
7:06
+0:11
20M
20.00 mi12:18:352:16:286:499:40
7:07
+0:01
21M
21.00 mi12:25:592:23:526:517:24
7:24
+0:17
35K
21.75 mi12:31:062:28:596:515:07
6:50
-0:34
23M
23.00 mi12:40:102:38:036:529:04
7:14
+0:24
24M
24.00 mi12:47:112:45:046:537:01
7:01
-0:13
40K
24.85 mi12:53:102:51:036:535:59
7:00
-0:01
25.2M
25.20 mi12:55:432:53:366:532:33
7:24
+0:24
Finish
26.22 mi13:02:363:00:296:536:53
6:45
-0:39

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

6:36 /mi

Average Pace

6:53 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:50:32

94% of race

Time at Steady Pace

9:57

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:53 /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 mi10:23:0721:006:4621:00
6:46
#4269
10K
6.21 mi10:43:4941:426:4320:42
6:40
#4105
15K
9.32 mi11:04:331:02:266:4220:44
6:40
#4009
20K
12.43 mi11:25:361:23:296:4321:03
6:47
#4030
Half
13.11 mi11:30:061:27:596:434:30
6:36
#4000
25K
15.53 mi11:46:521:44:456:4516:46
6:55
#4160
30K
18.64 mi12:08:552:06:486:4822:03
7:06
#4333
20M
20.00 mi12:18:352:16:286:499:40
7:07
#4359
21M
21.00 mi12:25:592:23:526:517:24
7:24
#4326
35K
21.75 mi12:31:062:28:596:515:07
6:50
#4317
23M
23.00 mi12:40:102:38:036:529:04
7:14
#4369
24M
24.00 mi12:47:112:45:046:537:01
7:01
#4397
40K
24.85 mi12:53:102:51:036:535:59
7:00
#4369
25.2M
25.20 mi12:55:432:53:366:532:33
7:24
#4336
Finish
26.22 mi13:02:363:00:296:536:53
6:45
#4304
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi42692722723893(Top 15%)228(Top 2%)228(Top 5%)
10K6.21 mi3.10 mi4105+164243+29243+294008(Top 15%)235(Top 2%)235(Top 5%)
15K9.32 mi3.11 mi4009+96232+11232+113893(Top 15%)228(Top 2%)228(Top 5%)
20K12.43 mi3.11 mi4030-21239-7239-74226(Top 16%)267(Top 2%)267(Top 5%)
Half13.11 mi0.68 mi4000+30237+2237+23487(Top 13%)187(Top 2%)187(Top 4%)
25K15.53 mi2.42 mi4160-160256-19256-195068(Top 19%)380(Top 3%)380(Top 8%)
30K18.64 mi3.11 mi4333-173269-13269-134926(Top 19%)390(Top 3%)390(Top 8%)
20M20.00 mi1.36 mi4359-26282-13282-134698(Top 18%)394(Top 3%)394(Top 8%)
21M21.00 mi1.00 mi4326+33279+3279+34143(Top 16%)335(Top 3%)335(Top 7%)
35K21.75 mi0.75 mi4317+9280-1280-14487(Top 17%)383(Top 3%)383(Top 8%)
23M23.00 mi1.25 mi4369-52283-3283-35013(Top 19%)527(Top 5%)527(Top 11%)
24M24.00 mi1.00 mi4397-28287-4287-44783(Top 18%)509(Top 4%)509(Top 10%)
40K24.85 mi0.85 mi4369+282872873880(Top 15%)384(Top 3%)384(Top 8%)
25.2M25.20 mi0.35 mi4336+33288-1288-13471(Top 13%)334(Top 3%)334(Top 7%)
Finish26.22 mi1.02 mi4304+32286+2286+23838(Top 14%)429(Top 4%)429(Top 9%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21story building
+97ft-345ft

Overall

3893

Females

228

F18-39

228

5K→10K

3.1 - 6.2 mi

Top 15%
×5story building
+79ft-138ft

Overall

4008

Females

235

F18-39

235

10K→15K

6.2 - 9.3 mi

Top 15%
×3story building
+67ft-78ft

Overall

3893

Females

228

F18-39

228

15K→20K

9.3 - 12.4 mi

Top 16%
×5story building
+106ft-86ft

Overall

4226

Females

267

F18-39

267

20K→Half

12.4 - 13.1 mi

Top 13%
×2story building
+19ft-37ft

Overall

3487

Females

187

F18-39

187

Half→25K

13.1 - 15.5 mi

Top 19%
×4story building
+66ft-88ft

Overall

5068

Females

380

F18-39

380

25K→30K

15.5 - 18.6 mi

Top 19%
×9story building
+181ft-148ft

Overall

4926

Females

390

F18-39

390

30K→20M

18.6 - 20.0 mi

Top 18%
×5story building
+64ft-50ft

Overall

4698

Females

394

F18-39

394

20M→21M

20.0 - 21.0 mi

Top 16%
×8story building
+106ft-24ft

Overall

4143

Females

335

F18-39

335

21M→35K

21.0 - 21.8 mi

Top 17%
×7story building
+17ft-86ft

Overall

4487

Females

383

F18-39

383

35K→23M

21.8 - 23.0 mi

Top 19%
×5story building
+23ft-63ft

Overall

5013

Females

527

F18-39

527

23M→24M

23.0 - 24.0 mi

Top 18%
×6story building
+12ft-82ft

Overall

4783

Females

509

F18-39

509

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

3880

Females

384

F18-39

384

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3471

Females

334

F18-39

334

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2story building
+22ft-21ft

Overall

3838

Females

429

F18-39

429

Passing Analysis

Category:
Athletes Passed
1164
Passed By
1199
Net Change
-35
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4269
5K → 10K313149+164#4269#4105
10K → 15K17478+96#4105#4009
15K → 20K104125-21#4009#4030
20K → Half366+30#4030#4000
Half → 25K37197-160#4000#4160
25K → 30K69242-173#4160#4333
30K → 20M5379-26#4333#4359
20M → 21M7946+33#4359#4326
21M → 35K4435+9#4326#4317
35K → 23M57109-52#4317#4369
23M → 24M4270-28#4369#4397
24M → 40K5426+28#4397#4369
40K → 25.2M396+33#4369#4336
25.2M → Finish6331+32#4336#4304
TOTALS11641199-35
📊

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