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BOSTON MARATHON 2023

Emily Keil

Bib: 27763•F

NY

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
10:16/mi
31:55
↑ 97↓ 3451.5%
10K· 6.21 mi
9:14/mi
1:00:37
↑ 79↓ 1380.4%
15K· 9.32 mi
9:13/mi
1:29:15
↑ 67↓ 78
20K· 12.43 mi
9:05/mi
1:57:27
↑ 106↓ 860.1%
Half· 13.11 mi
8:58/mi
2:03:34
↑ 19↓ 370.5%
25K· 15.53 mi
9:18/mi
2:26:08
↑ 66↓ 880.2%
30K· 18.64 mi
9:21/mi
2:55:10
↑ 181↓ 1480.2%
20M
9:28/mi
3:08:02
↑ 64↓ 500.2%
21M
9:03/mi
3:17:05
↑ 106↓ 241.6%
35K· 21.75 mi
8:12/mi
3:23:13
↑ 17↓ 861.7%
23M
8:10/mi
3:33:26
↑ 23↓ 630.6%
24M
8:13/mi
3:41:39
↓ 821.3%
40K· 24.85 mi
8:15/mi
3:48:42
↓ 200.3%
25.2M
8:19/mi
3:51:34
↑ 13↓ 160.2%
Finish· 26.22 mi
7:38/mi
3:59:21
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:03:34
Pace9:26 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:55:47
Pace8:50 /mi
📊Negative Split: 6.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:0631:5510:1631:55
10:16
-
10K
6.21 mi12:17:481:00:379:4528:42
9:14
-1:02
15K
9.32 mi12:46:261:29:159:3528:38
9:13
-0:01
20K
12.43 mi13:14:381:57:279:2728:12
9:05
-0:08
Half
13.11 mi13:20:452:03:349:266:07
8:58
-0:07
25K
15.53 mi13:43:192:26:089:2422:34
9:18
+0:20
30K
18.64 mi14:12:212:55:109:2429:02
9:21
+0:03
20M
20.00 mi14:25:133:08:029:2412:52
9:28
+0:07
21M
21.00 mi14:34:163:17:059:239:03
9:03
-0:25
35K
21.75 mi14:40:243:23:139:216:08
8:12
-0:51
23M
23.00 mi14:50:373:33:269:1710:13
8:10
-0:02
24M
24.00 mi14:58:503:41:399:148:13
8:13
+0:03
40K
24.85 mi15:05:533:48:429:127:03
8:15
+0:02
25.2M
25.20 mi15:08:453:51:349:112:52
8:19
+0:04
Finish
26.22 mi15:16:323:59:219:087:47
7:38
-0:41

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

7:38 /mi

Average Pace

9:08 /mi

Slowest Pace

10:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

42:16

18% of race

Time at Steady Pace

2:32:18

64% of race

Time at Slower Pace

44:47

19% of race

Average Pace: 9:08 /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 mi11:49:0631:5510:1631:55
10:16
#24152
10K
6.21 mi12:17:481:00:379:4528:42
9:14
#23051
15K
9.32 mi12:46:261:29:159:3528:38
9:13
#22524
20K
12.43 mi13:14:381:57:279:2728:12
9:05
#21948
Half
13.11 mi13:20:452:03:349:266:07
8:58
#21873
25K
15.53 mi13:43:192:26:089:2422:34
9:18
#21610
30K
18.64 mi14:12:212:55:109:2429:02
9:21
#21171
20M
20.00 mi14:25:133:08:029:2412:52
9:28
#20965
21M
21.00 mi14:34:163:17:059:239:03
9:03
#20631
35K
21.75 mi14:40:243:23:139:216:08
8:12
#20431
23M
23.00 mi14:50:373:33:269:1710:13
8:10
#20055
24M
24.00 mi14:58:503:41:399:148:13
8:13
#19813
40K
24.85 mi15:05:533:48:429:127:03
8:15
#19582
25.2M
25.20 mi15:08:453:51:349:112:52
8:19
#19468
Finish
26.22 mi15:16:323:59:219:087:47
7:38
#19195
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi241529961996121364(Top 80%)8430(Top 74%)8430(Top 173%)
10K6.21 mi3.10 mi23051+11019392+5699392+56921731(Top 82%)8675(Top 76%)8675(Top 178%)
15K9.32 mi3.11 mi22524+5279104+2889104+28821364(Top 80%)8430(Top 74%)8430(Top 173%)
20K12.43 mi3.11 mi21948+5768806+2988806+29820034(Top 75%)7694(Top 67%)7694(Top 158%)
Half13.11 mi0.68 mi21873+758756+508756+5020317(Top 76%)7852(Top 69%)7852(Top 161%)
25K15.53 mi2.42 mi21610+2638604+1528604+15220223(Top 76%)7820(Top 68%)7820(Top 160%)
30K18.64 mi3.11 mi21171+4398375+2298375+22918808(Top 71%)7088(Top 62%)7088(Top 145%)
20M20.00 mi1.36 mi20965+2068277+988277+9818762(Top 70%)7166(Top 63%)7166(Top 147%)
21M21.00 mi1.00 mi20631+3348099+1788099+17813744(Top 52%)4368(Top 38%)4368(Top 89%)
35K21.75 mi0.75 mi20431+2008003+968003+9613519(Top 51%)4318(Top 38%)4318(Top 88%)
23M23.00 mi1.25 mi20055+3767803+2007803+20010936(Top 41%)3003(Top 26%)3003(Top 61%)
24M24.00 mi1.00 mi19813+2427656+1477656+14712778(Top 48%)4018(Top 35%)4018(Top 82%)
40K24.85 mi0.85 mi19582+2317531+1257531+12511731(Top 44%)3543(Top 31%)3543(Top 73%)
25.2M25.20 mi0.35 mi19468+1147476+557476+558532(Top 32%)2083(Top 18%)2083(Top 43%)
Finish26.22 mi1.02 mi19195+2737323+1537323+1539606(Top 36%)2536(Top 22%)2536(Top 52%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

21364

Females

8430

F18-39

8430

5K→10K

3.1 - 6.2 mi

Top 82%
×5story building
+79ft-138ft

Overall

21731

Females

8675

F18-39

8675

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

21364

Females

8430

F18-39

8430

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

20034

Females

7694

F18-39

7694

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

20317

Females

7852

F18-39

7852

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

20223

Females

7820

F18-39

7820

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

18808

Females

7088

F18-39

7088

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

18762

Females

7166

F18-39

7166

20M→21M

20.0 - 21.0 mi

Top 52%
×8story building
+106ft-24ft

Overall

13744

Females

4368

F18-39

4368

21M→35K

21.0 - 21.8 mi

Top 51%
×7story building
+17ft-86ft

Overall

13519

Females

4318

F18-39

4318

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

10936

Females

3003

F18-39

3003

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

12778

Females

4018

F18-39

4018

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11731

Females

3543

F18-39

3543

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8532

Females

2083

F18-39

2083

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

9606

Females

2536

F18-39

2536

Passing Analysis

Category:
Athletes Passed
4999
Passed By
42
Net Change
+4957
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24152
5K → 10K111110+1101#24152#23051
10K → 15K5369+527#23051#22524
15K → 20K5815+576#22524#21948
20K → Half772+75#21948#21873
Half → 25K2718+263#21873#21610
25K → 30K4445+439#21610#21171
30K → 20M2071+206#21171#20965
20M → 21M3340+334#20965#20631
21M → 35K2000+200#20631#20431
35K → 23M3760+376#20431#20055
23M → 24M2431+242#20055#19813
24M → 40K2310+231#19813#19582
40K → 25.2M1140+114#19582#19468
25.2M → Finish2741+273#19468#19195
TOTALS499942+4957
📊

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