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BOSTON MARATHON 2023

Emily Summers

Bib: 18313•F

IN

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
8:36/mi
26:42
↑ 97↓ 3451.5%
10K· 6.21 mi
8:58/mi
54:32
↑ 79↓ 1380.4%
15K· 9.32 mi
8:27/mi
1:20:46
↑ 67↓ 78
20K· 12.43 mi
8:30/mi
1:47:10
↑ 106↓ 860.1%
Half· 13.11 mi
8:39/mi
1:53:04
↑ 19↓ 370.5%
25K· 15.53 mi
8:45/mi
2:14:18
↑ 66↓ 880.2%
30K· 18.64 mi
9:15/mi
2:43:03
↑ 181↓ 1480.2%
20M
9:16/mi
2:55:38
↑ 64↓ 500.2%
21M
10:46/mi
3:06:24
↑ 106↓ 241.6%
35K· 21.75 mi
9:07/mi
3:13:13
↑ 17↓ 861.7%
23M
9:09/mi
3:24:41
↑ 23↓ 630.6%
24M
8:27/mi
3:33:08
↓ 821.3%
40K· 24.85 mi
8:50/mi
3:40:41
↓ 200.3%
25.2M
9:28/mi
3:43:57
↑ 13↓ 160.2%
Finish· 26.22 mi
8:19/mi
3:52:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:04
Pace8:37 /mi
2nd Half
Distance13.11 mi
Time1:59:22
Pace9:06 /mi
📊Positive Split: 5.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:5226:428:3626:42
8:36
-
10K
6.21 mi11:51:4254:328:4727:50
8:58
+0:22
15K
9.32 mi12:17:561:20:468:4026:14
8:27
-0:31
20K
12.43 mi12:44:201:47:108:3726:24
8:30
+0:03
Half
13.11 mi12:50:141:53:048:375:54
8:39
+0:09
25K
15.53 mi13:11:282:14:188:3921:14
8:45
+0:06
30K
18.64 mi13:40:132:43:038:4528:45
9:15
+0:30
20M
20.00 mi13:52:482:55:388:4712:35
9:16
+0:01
21M
21.00 mi14:03:343:06:248:5310:46
10:46
+1:30
35K
21.75 mi14:10:233:13:138:536:49
9:07
-1:39
23M
23.00 mi14:21:513:24:418:5411:28
9:09
+0:02
24M
24.00 mi14:30:183:33:088:538:27
8:27
-0:42
40K
24.85 mi14:37:513:40:418:537:33
8:50
+0:23
25.2M
25.20 mi14:41:073:43:578:533:16
9:28
+0:38
Finish
26.22 mi14:49:363:52:268:528:29
8:19
-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

8:19 /mi

Average Pace

8:52 /mi

Slowest Pace

10:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:09:34

30% of race

Time at Steady Pace

1:36:02

41% of race

Time at Slower Pace

1:06:50

29% of race

Average Pace: 8:52 /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 mi11:23:5226:428:3626:42
8:36
#18200
10K
6.21 mi11:51:4254:328:4727:50
8:58
#19551
15K
9.32 mi12:17:561:20:468:4026:14
8:27
#18842
20K
12.43 mi12:44:201:47:108:3726:24
8:30
#18346
Half
13.11 mi12:50:141:53:048:375:54
8:39
#18353
25K
15.53 mi13:11:282:14:188:3921:14
8:45
#18244
30K
18.64 mi13:40:132:43:038:4528:45
9:15
#18262
20M
20.00 mi13:52:482:55:388:4712:35
9:16
#18218
21M
21.00 mi14:03:343:06:248:5310:46
10:46
#18407
35K
21.75 mi14:10:233:13:138:536:49
9:07
#18396
23M
23.00 mi14:21:513:24:418:5411:28
9:09
#18306
24M
24.00 mi14:30:183:33:088:538:27
8:27
#18152
40K
24.85 mi14:37:513:40:418:537:33
8:50
#18046
25.2M
25.20 mi14:41:073:43:578:533:16
9:28
#17999
Finish
26.22 mi14:49:363:52:268:528:29
8:19
#17866
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi182006682668217440(Top 66%)6183(Top 54%)6183(Top 127%)
10K6.21 mi3.10 mi19551-13517499-8177499-81720711(Top 78%)8095(Top 71%)8095(Top 166%)
15K9.32 mi3.11 mi18842+7097032+4677032+46717440(Top 66%)6183(Top 54%)6183(Top 127%)
20K12.43 mi3.11 mi18346+4966718+3146718+31416848(Top 63%)5852(Top 51%)5852(Top 120%)
Half13.11 mi0.68 mi18353-76717+16717+118637(Top 70%)6851(Top 60%)6851(Top 140%)
25K15.53 mi2.42 mi18244+1096675+426675+4217715(Top 67%)6412(Top 56%)6412(Top 131%)
30K18.64 mi3.11 mi18262-186720-456720-4518421(Top 69%)6876(Top 60%)6876(Top 141%)
20M20.00 mi1.36 mi18218+446712+86712+817850(Top 67%)6661(Top 58%)6661(Top 136%)
21M21.00 mi1.00 mi18407-1896830-1186830-11820300(Top 76%)8088(Top 71%)8088(Top 166%)
35K21.75 mi0.75 mi18396+116835-56835-518400(Top 69%)7050(Top 62%)7050(Top 144%)
23M23.00 mi1.25 mi18306+906795+406795+4016869(Top 63%)6219(Top 54%)6219(Top 127%)
24M24.00 mi1.00 mi18152+1546715+806715+8014228(Top 53%)4814(Top 42%)4814(Top 99%)
40K24.85 mi0.85 mi18046+1066668+476668+4715288(Top 57%)5470(Top 48%)5470(Top 112%)
25.2M25.20 mi0.35 mi17999+476644+246644+2415156(Top 57%)5410(Top 47%)5410(Top 111%)
Finish26.22 mi1.02 mi17866+1336568+766568+7614295(Top 54%)4907(Top 43%)4907(Top 100%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

17440

Females

6183

F18-39

6183

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

20711

Females

8095

F18-39

8095

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

17440

Females

6183

F18-39

6183

15K→20K

9.3 - 12.4 mi

Top 63%
×5story building
+106ft-86ft

Overall

16848

Females

5852

F18-39

5852

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

18637

Females

6851

F18-39

6851

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

17715

Females

6412

F18-39

6412

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

18421

Females

6876

F18-39

6876

30K→20M

18.6 - 20.0 mi

Top 67%
×5story building
+64ft-50ft

Overall

17850

Females

6661

F18-39

6661

20M→21M

20.0 - 21.0 mi

Top 76%
×8story building
+106ft-24ft

Overall

20300

Females

8088

F18-39

8088

21M→35K

21.0 - 21.8 mi

Top 69%
×7story building
+17ft-86ft

Overall

18400

Females

7050

F18-39

7050

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

16869

Females

6219

F18-39

6219

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

14228

Females

4814

F18-39

4814

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

15288

Females

5470

F18-39

5470

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

15156

Females

5410

F18-39

5410

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

14295

Females

4907

F18-39

4907

Passing Analysis

Category:
Athletes Passed
2457
Passed By
2123
Net Change
+334
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18200
5K → 10K411392-1351#18200#19551
10K → 15K73425+709#19551#18842
15K → 20K50913+496#18842#18346
20K → Half3037-7#18346#18353
Half → 25K17566+109#18353#18244
25K → 30K182200-18#18244#18262
30K → 20M10056+44#18262#18218
20M → 21M38227-189#18218#18407
21M → 35K5544+11#18407#18396
35K → 23M12535+90#18396#18306
23M → 24M1573+154#18306#18152
24M → 40K1115+106#18152#18046
40K → 25.2M547+47#18046#17999
25.2M → Finish14613+133#17999#17866
TOTALS24572123+334
📊

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