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BOSTON MARATHON 2023

Elizabeth Shea

Bib: 17480•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 47%
Masters (Masters Women)
#0 / 6539
Top 37%
Division (F45-49)
#0 / 1817
Top 44%
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
7:49/mi
24:18
↑ 97↓ 3451.5%
10K· 6.21 mi
7:51/mi
48:40
↑ 79↓ 1380.4%
15K· 9.32 mi
7:59/mi
1:13:29
↑ 67↓ 78
20K· 12.43 mi
8:16/mi
1:39:11
↑ 106↓ 860.1%
Half· 13.11 mi
7:55/mi
1:44:35
↑ 19↓ 370.5%
25K· 15.53 mi
8:22/mi
2:04:53
↑ 66↓ 880.2%
30K· 18.64 mi
8:59/mi
2:32:47
↑ 181↓ 1480.2%
20M
9:13/mi
2:45:18
↑ 64↓ 500.2%
21M
10:15/mi
2:55:33
↑ 106↓ 241.6%
35K· 21.75 mi
8:45/mi
3:02:06
↑ 17↓ 861.7%
23M
9:17/mi
3:13:44
↑ 23↓ 630.6%
24M
8:58/mi
3:22:42
↓ 821.3%
40K· 24.85 mi
9:11/mi
3:30:33
↓ 200.3%
25.2M
10:41/mi
3:34:14
↑ 13↓ 160.2%
Finish· 26.22 mi
9:26/mi
3:43:51
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:35
Pace7:59 /mi
2nd Half
Distance13.11 mi
Time1:59:16
Pace9:06 /mi
📊Positive Split: 14.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:1124:187:4924:18
7:49
-
10K
6.21 mi11:39:3348:407:5024:22
7:51
+0:02
15K
9.32 mi12:04:221:13:297:5324:49
7:59
+0:08
20K
12.43 mi12:30:041:39:117:5925:42
8:16
+0:17
Half
13.11 mi12:35:281:44:357:595:24
7:55
-0:21
25K
15.53 mi12:55:462:04:538:0220:18
8:22
+0:27
30K
18.64 mi13:23:402:32:478:1227:54
8:59
+0:37
20M
20.00 mi13:36:112:45:188:1612:31
9:13
+0:14
21M
21.00 mi13:46:262:55:338:2210:15
10:15
+1:02
35K
21.75 mi13:52:593:02:068:226:33
8:45
-1:30
23M
23.00 mi14:04:373:13:448:2511:38
9:17
+0:32
24M
24.00 mi14:13:353:22:428:278:58
8:58
-0:19
40K
24.85 mi14:21:263:30:338:287:51
9:11
+0:13
25.2M
25.20 mi14:25:073:34:148:303:41
10:41
+1:30
Finish
26.22 mi14:34:443:43:518:339:37
9:26
-1:15

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

7:49 /mi

Average Pace

8:33 /mi

Slowest Pace

10:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:53

56% of race

Time at Steady Pace

1:15:25

34% of race

Time at Slower Pace

23:33

11% of race

Average Pace: 8:32 /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 mi11:15:1124:187:4924:18
7:49
#12582
10K
6.21 mi11:39:3348:407:5024:22
7:51
#13000
15K
9.32 mi12:04:221:13:297:5324:49
7:59
#13449
20K
12.43 mi12:30:041:39:117:5925:42
8:16
#13953
Half
13.11 mi12:35:281:44:357:595:24
7:55
#13931
25K
15.53 mi12:55:462:04:538:0220:18
8:22
#14197
30K
18.64 mi13:23:402:32:478:1227:54
8:59
#14782
20M
20.00 mi13:36:112:45:188:1612:31
9:13
#15003
21M
21.00 mi13:46:262:55:338:2210:15
10:15
#15268
35K
21.75 mi13:52:593:02:068:226:33
8:45
#15298
23M
23.00 mi14:04:373:13:448:2511:38
9:17
#15453
24M
24.00 mi14:13:353:22:428:278:58
8:58
#15526
40K
24.85 mi14:21:263:30:338:287:51
9:11
#15599
25.2M
25.20 mi14:25:073:34:148:303:41
10:41
#15683
Finish
26.22 mi14:34:443:43:518:339:37
9:26
#15894
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi125823211321114316(Top 54%)4273(Top 37%)4273(Top 235%)
10K6.21 mi3.10 mi13000-4183449-2383449-23813520(Top 51%)3744(Top 33%)3744(Top 206%)
15K9.32 mi3.11 mi13449-4493719-2703719-27014316(Top 54%)4273(Top 37%)4273(Top 235%)
20K12.43 mi3.11 mi13953-5044056-3374056-33715442(Top 58%)4994(Top 44%)4994(Top 275%)
Half13.11 mi0.68 mi13931+224044+124044+1213790(Top 52%)3977(Top 35%)3977(Top 219%)
25K15.53 mi2.42 mi14197-2664231-1874231-18715424(Top 58%)5096(Top 45%)5096(Top 280%)
30K18.64 mi3.11 mi14782-5854604-3734604-37317062(Top 64%)6098(Top 53%)6098(Top 336%)
20M20.00 mi1.36 mi15003-2214776-1724776-17217597(Top 66%)6509(Top 57%)6509(Top 358%)
21M21.00 mi1.00 mi15268-2654974-1984974-19818882(Top 71%)7266(Top 64%)7266(Top 400%)
35K21.75 mi0.75 mi15298-305005-315005-3116727(Top 63%)6115(Top 54%)6115(Top 337%)
23M23.00 mi1.25 mi15453-1555133-1285133-12817480(Top 66%)6552(Top 57%)6552(Top 361%)
24M24.00 mi1.00 mi15526-735196-635196-6317086(Top 64%)6403(Top 56%)6403(Top 352%)
40K24.85 mi0.85 mi15599-735246-505246-5017027(Top 64%)6412(Top 56%)6412(Top 353%)
25.2M25.20 mi0.35 mi15683-845295-495295-4919653(Top 74%)7861(Top 69%)7861(Top 433%)
Finish26.22 mi1.02 mi15894-2115424-1295424-12919904(Top 75%)7937(Top 69%)7937(Top 437%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

14316

Females

4273

F45-49

4273

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

13520

Females

3744

F45-49

3744

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

14316

Females

4273

F45-49

4273

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

15442

Females

4994

F45-49

4994

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

13790

Females

3977

F45-49

3977

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

15424

Females

5096

F45-49

5096

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

17062

Females

6098

F45-49

6098

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

17597

Females

6509

F45-49

6509

20M→21M

20.0 - 21.0 mi

Top 71%
×8story building
+106ft-24ft

Overall

18882

Females

7266

F45-49

7266

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

16727

Females

6115

F45-49

6115

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

17480

Females

6552

F45-49

6552

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

17086

Females

6403

F45-49

6403

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

17027

Females

6412

F45-49

6412

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

19653

Females

7861

F45-49

7861

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

19904

Females

7937

F45-49

7937

Passing Analysis

Category:
Athletes Passed
729
Passed By
4041
Net Change
-3312
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12582
5K → 10K146564-418#12582#13000
10K → 15K86535-449#13000#13449
15K → 20K67571-504#13449#13953
20K → Half4422+22#13953#13931
Half → 25K67333-266#13931#14197
25K → 30K53638-585#14197#14782
30K → 20M36257-221#14782#15003
20M → 21M32297-265#15003#15268
21M → 35K3464-30#15268#15298
35K → 23M51206-155#15298#15453
23M → 24M45118-73#15453#15526
24M → 40K39112-73#15526#15599
40K → 25.2M1195-84#15599#15683
25.2M → Finish18229-211#15683#15894
TOTALS7294041-3312
📊

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