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BOSTON MARATHON 2023

Elaine Kasschau

Bib: 26174•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
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
10:14/mi
31:48
↑ 97↓ 3451.5%
10K· 6.21 mi
10:10/mi
1:03:24
↑ 79↓ 1380.4%
15K· 9.32 mi
9:56/mi
1:34:16
↑ 67↓ 78
20K· 12.43 mi
9:54/mi
2:05:03
↑ 106↓ 860.1%
Half· 13.11 mi
9:59/mi
2:11:52
↑ 19↓ 370.5%
25K· 15.53 mi
9:51/mi
2:35:44
↑ 66↓ 880.2%
30K· 18.64 mi
10:29/mi
3:08:18
↑ 181↓ 1480.2%
20M
10:01/mi
3:21:55
↑ 64↓ 500.2%
21M
10:14/mi
3:32:09
↑ 106↓ 241.6%
35K· 21.75 mi
9:45/mi
3:39:27
↑ 17↓ 861.7%
23M
9:46/mi
3:51:41
↑ 23↓ 630.6%
24M
9:41/mi
4:01:22
↓ 821.3%
40K· 24.85 mi
9:45/mi
4:09:42
↓ 200.3%
25.2M
10:26/mi
4:13:18
↑ 13↓ 160.2%
Finish· 26.22 mi
9:14/mi
4:22:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time2:11:52
Pace10:04 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:10:51
Pace9:59 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:0731:4810:1431:48
10:14
-
10K
6.21 mi12:26:431:03:2410:1231:36
10:10
-0:04
15K
9.32 mi12:57:351:34:1610:0730:52
9:56
-0:14
20K
12.43 mi13:28:222:05:0310:0430:47
9:54
-0:02
Half
13.11 mi13:35:112:11:5210:046:49
9:59
+0:05
25K
15.53 mi13:59:032:35:4410:0223:52
9:51
-0:08
30K
18.64 mi14:31:373:08:1810:0632:34
10:29
+0:38
20M
20.00 mi14:45:143:21:5510:0613:37
10:01
-0:28
21M
21.00 mi14:55:283:32:0910:0610:14
10:14
+0:13
35K
21.75 mi15:02:463:39:2710:057:18
9:45
-0:29
23M
23.00 mi15:15:003:51:4110:0412:14
9:46
+0:01
24M
24.00 mi15:24:414:01:2210:039:41
9:41
-0:05
40K
24.85 mi15:33:014:09:4210:038:20
9:45
+0:04
25.2M
25.20 mi15:36:374:13:1810:033:36
10:26
+0:41
Finish
26.22 mi15:46:024:22:4310:029:25
9:14
-1:12

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

9:14 /mi

Average Pace

10:02 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:55

58% of race

Time at Steady Pace

1:49:48

42% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:01 /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 mi11:55:0731:4810:1431:48
10:14
#24032
10K
6.21 mi12:26:431:03:2410:1231:36
10:10
#24066
15K
9.32 mi12:57:351:34:1610:0730:52
9:56
#23825
20K
12.43 mi13:28:222:05:0310:0430:47
9:54
#23561
Half
13.11 mi13:35:112:11:5210:046:49
9:59
#23545
25K
15.53 mi13:59:032:35:4410:0223:52
9:51
#23263
30K
18.64 mi14:31:373:08:1810:0632:34
10:29
#23054
20M
20.00 mi14:45:143:21:5510:0613:37
10:01
#22839
21M
21.00 mi14:55:283:32:0910:0610:14
10:14
#22670
35K
21.75 mi15:02:463:39:2710:057:18
9:45
#22584
23M
23.00 mi15:15:003:51:4110:0412:14
9:46
#22427
24M
24.00 mi15:24:414:01:2210:039:41
9:41
#22336
40K
24.85 mi15:33:014:09:4210:038:20
9:45
#22227
25.2M
25.20 mi15:36:374:13:1810:033:36
10:26
#22174
Finish
26.22 mi15:46:024:22:4310:029:25
9:14
#22082
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi240329905990523388(Top 88%)9540(Top 84%)9540(Top 195%)
10K6.21 mi3.10 mi24066-349930-259930-2524066(Top 90%)9923(Top 87%)9923(Top 203%)
15K9.32 mi3.11 mi23825+2419796+1349796+13423388(Top 88%)9540(Top 84%)9540(Top 195%)
20K12.43 mi3.11 mi23561+2649638+1589638+15822672(Top 85%)9178(Top 80%)9178(Top 188%)
Half13.11 mi0.68 mi23545+169632+69632+623266(Top 87%)9496(Top 83%)9496(Top 194%)
25K15.53 mi2.42 mi23263+2829488+1449488+14421849(Top 82%)8755(Top 77%)8755(Top 179%)
30K18.64 mi3.11 mi23054+2099413+759413+7522172(Top 83%)8994(Top 79%)8994(Top 184%)
20M20.00 mi1.36 mi22839+2159313+1009313+10020548(Top 77%)8163(Top 71%)8163(Top 167%)
21M21.00 mi1.00 mi22670+1699238+759238+7518846(Top 71%)7260(Top 64%)7260(Top 149%)
35K21.75 mi0.75 mi22584+869194+449194+4420666(Top 78%)8318(Top 73%)8318(Top 170%)
23M23.00 mi1.25 mi22427+1579110+849110+8419359(Top 73%)7620(Top 67%)7620(Top 156%)
24M24.00 mi1.00 mi22336+919067+439067+4319862(Top 75%)7905(Top 69%)7905(Top 162%)
40K24.85 mi0.85 mi22227+1099012+559012+5519226(Top 72%)7625(Top 67%)7625(Top 156%)
25.2M25.20 mi0.35 mi22174+538988+248988+2418974(Top 71%)7515(Top 66%)7515(Top 154%)
Finish26.22 mi1.02 mi22082+928953+358953+3519151(Top 72%)7528(Top 66%)7528(Top 154%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21story building
+97ft-345ft

Overall

23388

Females

9540

F18-39

9540

5K→10K

3.1 - 6.2 mi

Top 90%
×5story building
+79ft-138ft

Overall

24066

Females

9923

F18-39

9923

10K→15K

6.2 - 9.3 mi

Top 88%
×3story building
+67ft-78ft

Overall

23388

Females

9540

F18-39

9540

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

22672

Females

9178

F18-39

9178

20K→Half

12.4 - 13.1 mi

Top 87%
×2story building
+19ft-37ft

Overall

23266

Females

9496

F18-39

9496

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

21849

Females

8755

F18-39

8755

25K→30K

15.5 - 18.6 mi

Top 83%
×9story building
+181ft-148ft

Overall

22172

Females

8994

F18-39

8994

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

20548

Females

8163

F18-39

8163

20M→21M

20.0 - 21.0 mi

Top 71%
×8story building
+106ft-24ft

Overall

18846

Females

7260

F18-39

7260

21M→35K

21.0 - 21.8 mi

Top 78%
×7story building
+17ft-86ft

Overall

20666

Females

8318

F18-39

8318

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

19359

Females

7620

F18-39

7620

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

19862

Females

7905

F18-39

7905

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

19226

Females

7625

F18-39

7625

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

18974

Females

7515

F18-39

7515

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2story building
+22ft-21ft

Overall

19151

Females

7528

F18-39

7528

Passing Analysis

Category:
Athletes Passed
2292
Passed By
342
Net Change
+1950
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24032
5K → 10K186220-34#24032#24066
10K → 15K26928+241#24066#23825
15K → 20K28117+264#23825#23561
20K → Half3519+16#23561#23545
Half → 25K2853+282#23545#23263
25K → 30K24132+209#23263#23054
30K → 20M2194+215#23054#22839
20M → 21M1723+169#22839#22670
21M → 35K904+86#22670#22584
35K → 23M1581+157#22584#22427
23M → 24M976+91#22427#22336
24M → 40K1112+109#22336#22227
40K → 25.2M530+53#22227#22174
25.2M → Finish953+92#22174#22082
TOTALS2292342+1950
📊

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