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BOSTON MARATHON 2023

Emily Chester

NY

Bib: 12887 F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 30%
Gender (Female)
#0 / 11423
Top 11%
Division (F18-39)
#0 / 4884
Top 20%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:22/mi
22:54
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:20/mi
45:40
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:18/mi
1:08:20
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:21/mi
1:31:11
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:24/mi
1:36:14
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:29/mi
1:54:23
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:30/mi
2:17:42
↑ 181↓ 1480.2%
138 ft elev
20M
7:42/mi
2:28:10
↑ 64↓ 500.2%
148 ft elev
21M
8:04/mi
2:36:14
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:33/mi
2:41:53
↑ 17↓ 861.7%
156 ft elev
23M
7:43/mi
2:51:33
↑ 23↓ 630.6%
116 ft elev
24M
7:31/mi
2:59:04
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:29/mi
3:05:28
↓ 200.3%
20 ft elev
25.2M
7:58/mi
3:08:13
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:16/mi
3:15:37
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:14
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:39:23
Pace7:35 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:2022:547:2222:54
7:22
-
10K
6.21 mi11:13:0645:407:2122:46
7:20
-0:02
15K
9.32 mi11:35:461:08:207:2022:40
7:18
-0:02
20K
12.43 mi11:58:371:31:117:2022:51
7:21
+0:03
Half
13.11 mi12:03:401:36:147:205:03
7:24
+0:03
25K
15.53 mi12:21:491:54:237:2218:09
7:29
+0:05
30K
18.64 mi12:45:082:17:427:2323:19
7:30
+0:01
20M
20.00 mi12:55:362:28:107:2410:28
7:42
+0:12
21M
21.00 mi13:03:402:36:147:268:04
8:04
+0:22
35K
21.75 mi13:09:192:41:537:275:39
7:33
-0:31
23M
23.00 mi13:18:592:51:337:289:40
7:43
+0:10
24M
24.00 mi13:26:302:59:047:287:31
7:31
-0:12
40K
24.85 mi13:32:543:05:287:286:24
7:29
-0:02
25.2M
25.20 mi13:35:393:08:137:282:45
7:58
+0:29
Finish
26.22 mi13:43:033:15:377:287:24
7:16
-0:42

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

7:16 /mi

Average Pace

7:28 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:33

96% of race

Time at Steady Pace

8:04

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:28 /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 mi10:50:2022:547:2222:54
7:22
#8608
10K
6.21 mi11:13:0645:407:2122:46
7:20
#8809
15K
9.32 mi11:35:461:08:207:2022:40
7:18
#8701
20K
12.43 mi11:58:371:31:117:2022:51
7:21
#8532
Half
13.11 mi12:03:401:36:147:205:03
7:24
#8578
25K
15.53 mi12:21:491:54:237:2218:09
7:29
#8542
30K
18.64 mi12:45:082:17:427:2323:19
7:30
#8260
20M
20.00 mi12:55:362:28:107:2410:28
7:42
#8232
21M
21.00 mi13:03:402:36:147:268:04
8:04
#8196
35K
21.75 mi13:09:192:41:537:275:39
7:33
#8202
23M
23.00 mi13:18:592:51:337:289:40
7:43
#8142
24M
24.00 mi13:26:302:59:047:287:31
7:31
#8095
40K
24.85 mi13:32:543:05:287:286:24
7:29
#8000
25.2M
25.20 mi13:35:393:08:137:282:45
7:58
#7968
Finish
26.22 mi13:43:033:15:377:287:24
7:16
#7906
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8608123812388527(Top 32%)1258(Top 11%)1258(Top 26%)
10K6.21 mi3.10 mi8809-2011329-911329-919076(Top 34%)1440(Top 13%)1440(Top 29%)
15K9.32 mi3.11 mi8701+1081308+211308+218527(Top 32%)1258(Top 11%)1258(Top 26%)
20K12.43 mi3.11 mi8532+1691252+561252+568190(Top 31%)1170(Top 10%)1170(Top 24%)
Half13.11 mi0.68 mi8578-461267-151267-159458(Top 36%)1638(Top 14%)1638(Top 34%)
25K15.53 mi2.42 mi8542+361278-111278-118689(Top 33%)1418(Top 12%)1418(Top 29%)
30K18.64 mi3.11 mi8260+2821215+631215+637265(Top 27%)1023(Top 9%)1023(Top 21%)
20M20.00 mi1.36 mi8232+281224-91224-98220(Top 31%)1479(Top 13%)1479(Top 30%)
21M21.00 mi1.00 mi8196+361227-31227-37812(Top 29%)1427(Top 12%)1427(Top 29%)
35K21.75 mi0.75 mi8202-61240-131240-138937(Top 34%)1874(Top 16%)1874(Top 38%)
23M23.00 mi1.25 mi8142+60124012407874(Top 30%)1521(Top 13%)1521(Top 31%)
24M24.00 mi1.00 mi8095+471239+11239+17837(Top 29%)1612(Top 14%)1612(Top 33%)
40K24.85 mi0.85 mi8000+951224+151224+156663(Top 25%)1229(Top 11%)1229(Top 25%)
25.2M25.20 mi0.35 mi7968+321222+21222+26417(Top 24%)1201(Top 11%)1201(Top 25%)
Finish26.22 mi1.02 mi7906+62122212226866(Top 26%)1371(Top 12%)1371(Top 28%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21story building
+97ft-345ft

Overall

8527

Females

1258

F18-39

1258

5K→10K

3.1 - 6.2 mi

Top 34%
×5story building
+79ft-138ft

Overall

9076

Females

1440

F18-39

1440

10K→15K

6.2 - 9.3 mi

Top 32%
×3story building
+67ft-78ft

Overall

8527

Females

1258

F18-39

1258

15K→20K

9.3 - 12.4 mi

Top 31%
×5story building
+106ft-86ft

Overall

8190

Females

1170

F18-39

1170

20K→Half

12.4 - 13.1 mi

Top 36%
×2story building
+19ft-37ft

Overall

9458

Females

1638

F18-39

1638

Half→25K

13.1 - 15.5 mi

Top 33%
×4story building
+66ft-88ft

Overall

8689

Females

1418

F18-39

1418

25K→30K

15.5 - 18.6 mi

Top 27%
×9story building
+181ft-148ft

Overall

7265

Females

1023

F18-39

1023

30K→20M

18.6 - 20.0 mi

Top 31%
×5story building
+64ft-50ft

Overall

8220

Females

1479

F18-39

1479

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

7812

Females

1427

F18-39

1427

21M→35K

21.0 - 21.8 mi

Top 34%
×7story building
+17ft-86ft

Overall

8937

Females

1874

F18-39

1874

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

7874

Females

1521

F18-39

1521

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

7837

Females

1612

F18-39

1612

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6663

Females

1229

F18-39

1229

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6417

Females

1201

F18-39

1201

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2story building
+22ft-21ft

Overall

6866

Females

1371

F18-39

1371

Passing Analysis

Category:
Athletes Passed
1681
Passed By
979
Net Change
+702
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8608
5K → 10K171372-201#8608#8809
10K → 15K20294+108#8809#8701
15K → 20K22152+169#8701#8532
20K → Half854-46#8532#8578
Half → 25K10872+36#8578#8542
25K → 30K31735+282#8542#8260
30K → 20M8759+28#8260#8232
20M → 21M9054+36#8232#8196
21M → 35K3844-6#8196#8202
35K → 23M10545+60#8202#8142
23M → 24M8740+47#8142#8095
24M → 40K11116+95#8095#8000
40K → 25.2M4311+32#8000#7968
25.2M → Finish9331+62#7968#7906
TOTALS1681979+702
📊

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