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BOSTON MARATHON 2023

Aimee Heckendorn

Bib: 31652•F

TX

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 50%
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
8:27/mi
26:14
↑ 97↓ 3451.5%
10K· 6.21 mi
8:22/mi
52:15
↑ 79↓ 1380.4%
15K· 9.32 mi
8:24/mi
1:18:22
↑ 67↓ 78
20K· 12.43 mi
8:20/mi
1:44:15
↑ 106↓ 860.1%
Half· 13.11 mi
8:17/mi
1:49:54
↑ 19↓ 370.5%
25K· 15.53 mi
8:30/mi
2:10:31
↑ 66↓ 880.2%
30K· 18.64 mi
8:40/mi
2:37:28
↑ 181↓ 1480.2%
20M
8:53/mi
2:49:32
↑ 64↓ 500.2%
21M
9:25/mi
2:58:57
↑ 106↓ 241.6%
35K· 21.75 mi
8:47/mi
3:05:31
↑ 17↓ 861.7%
23M
9:11/mi
3:17:01
↑ 23↓ 630.6%
24M
8:58/mi
3:25:59
↓ 821.3%
40K· 24.85 mi
9:02/mi
3:33:42
↓ 200.3%
25.2M
9:49/mi
3:37:05
↑ 13↓ 160.2%
Finish· 26.22 mi
8:38/mi
3:45:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:54
Pace8:23 /mi
2nd Half
Distance13.11 mi
Time1:55:59
Pace8:51 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:0626:148:2726:14
8:27
-
10K
6.21 mi12:12:0752:158:2526:01
8:22
-0:05
15K
9.32 mi12:38:141:18:228:2426:07
8:24
+0:02
20K
12.43 mi13:04:071:44:158:2325:53
8:20
-0:04
Half
13.11 mi13:09:461:49:548:235:39
8:17
-0:03
25K
15.53 mi13:30:232:10:318:2420:37
8:30
+0:13
30K
18.64 mi13:57:202:37:288:2726:57
8:40
+0:10
20M
20.00 mi14:09:242:49:328:2912:04
8:53
+0:13
21M
21.00 mi14:18:492:58:578:319:25
9:25
+0:32
35K
21.75 mi14:25:233:05:318:326:34
8:47
-0:38
23M
23.00 mi14:36:533:17:018:3411:30
9:11
+0:24
24M
24.00 mi14:45:513:25:598:358:58
8:58
-0:13
40K
24.85 mi14:53:343:33:428:367:43
9:02
+0:04
25.2M
25.20 mi14:56:573:37:058:373:23
9:49
+0:47
Finish
26.22 mi15:05:453:45:538:378:48
8:38
-1:11

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

8:17 /mi

Average Pace

8:37 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:21:35

89% of race

Time at Steady Pace

20:55

9% of race

Time at Slower Pace

3:23

1% of race

Average Pace: 8:37 /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 mi11:46:0626:148:2726:14
8:27
#17185
10K
6.21 mi12:12:0752:158:2526:01
8:22
#17278
15K
9.32 mi12:38:141:18:228:2426:07
8:24
#17245
20K
12.43 mi13:04:071:44:158:2325:53
8:20
#16853
Half
13.11 mi13:09:461:49:548:235:39
8:17
#16836
25K
15.53 mi13:30:232:10:318:2420:37
8:30
#16750
30K
18.64 mi13:57:202:37:288:2726:57
8:40
#16452
20M
20.00 mi14:09:242:49:328:2912:04
8:53
#16386
21M
21.00 mi14:18:492:58:578:319:25
9:25
#16323
35K
21.75 mi14:25:233:05:318:326:34
8:47
#16332
23M
23.00 mi14:36:533:17:018:3411:30
9:11
#16363
24M
24.00 mi14:45:513:25:598:358:58
8:58
#16396
40K
24.85 mi14:53:343:33:428:367:43
9:02
#16375
25.2M
25.20 mi14:56:573:37:058:373:23
9:49
#16379
Finish
26.22 mi15:05:453:45:538:378:48
8:38
#16341
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi171856055605517189(Top 65%)6039(Top 53%)6039(Top 124%)
10K6.21 mi3.10 mi17278-936103-486103-4817413(Top 65%)6133(Top 54%)6133(Top 126%)
15K9.32 mi3.11 mi17245+336062+416062+4117189(Top 65%)6039(Top 53%)6039(Top 124%)
20K12.43 mi3.11 mi16853+3925837+2255837+22515818(Top 59%)5240(Top 46%)5240(Top 107%)
Half13.11 mi0.68 mi16836+175824+135824+1316423(Top 62%)5555(Top 49%)5555(Top 114%)
25K15.53 mi2.42 mi16750+865800+245800+2416233(Top 61%)5580(Top 49%)5580(Top 114%)
30K18.64 mi3.11 mi16452+2985661+1395661+13915372(Top 58%)5158(Top 45%)5158(Top 106%)
20M20.00 mi1.36 mi16386+665636+255636+2515915(Top 60%)5522(Top 48%)5522(Top 113%)
21M21.00 mi1.00 mi16323+635612+245612+2415582(Top 59%)5396(Top 47%)5396(Top 110%)
35K21.75 mi0.75 mi16332-95621-95621-916848(Top 63%)6192(Top 54%)6192(Top 127%)
23M23.00 mi1.25 mi16363-315652-315652-3116993(Top 64%)6285(Top 55%)6285(Top 129%)
24M24.00 mi1.00 mi16396-335687-355687-3517088(Top 64%)6405(Top 56%)6405(Top 131%)
40K24.85 mi0.85 mi16375+215701-145701-1416300(Top 61%)6025(Top 53%)6025(Top 123%)
25.2M25.20 mi0.35 mi16379-45709-85709-816622(Top 62%)6211(Top 54%)6211(Top 127%)
Finish26.22 mi1.02 mi16341+385685+245685+2416189(Top 61%)5931(Top 52%)5931(Top 121%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21story building
+97ft-345ft

Overall

17189

Females

6039

F18-39

6039

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

17413

Females

6133

F18-39

6133

10K→15K

6.2 - 9.3 mi

Top 65%
×3story building
+67ft-78ft

Overall

17189

Females

6039

F18-39

6039

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

15818

Females

5240

F18-39

5240

20K→Half

12.4 - 13.1 mi

Top 62%
×2story building
+19ft-37ft

Overall

16423

Females

5555

F18-39

5555

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

16233

Females

5580

F18-39

5580

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

15372

Females

5158

F18-39

5158

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

15915

Females

5522

F18-39

5522

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

15582

Females

5396

F18-39

5396

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

16848

Females

6192

F18-39

6192

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

16993

Females

6285

F18-39

6285

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

17088

Females

6405

F18-39

6405

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16300

Females

6025

F18-39

6025

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16622

Females

6211

F18-39

6211

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2story building
+22ft-21ft

Overall

16189

Females

5931

F18-39

5931

Passing Analysis

Category:
Athletes Passed
2014
Passed By
1170
Net Change
+844
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17185
5K → 10K269362-93#17185#17278
10K → 15K209176+33#17278#17245
15K → 20K42836+392#17245#16853
20K → Half3922+17#16853#16836
Half → 25K15367+86#16836#16750
25K → 30K34547+298#16750#16452
30K → 20M11347+66#16452#16386
20M → 21M10138+63#16386#16323
21M → 35K4655-9#16323#16332
35K → 23M6495-31#16332#16363
23M → 24M5689-33#16363#16396
24M → 40K8463+21#16396#16375
40K → 25.2M2731-4#16375#16379
25.2M → Finish8042+38#16379#16341
TOTALS20141170+844
📊

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