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BOSTON MARATHON 2023

Stacy Kelly

MA

Bib: 27518 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
10:12/mi
31:42
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
9:06/mi
59:59
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
9:16/mi
1:28:45
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
9:15/mi
1:57:28
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
9:11/mi
2:03:44
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
10:33/mi
2:29:18
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:54/mi
3:00:04
↑ 181↓ 1480.2%
138 ft elev
20M
11:05/mi
3:15:08
↑ 64↓ 500.2%
148 ft elev
21M
11:53/mi
3:27:01
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
10:46/mi
3:35:04
↑ 17↓ 861.7%
156 ft elev
23M
10:45/mi
3:48:31
↑ 23↓ 630.6%
116 ft elev
24M
9:40/mi
3:58:11
↓ 821.3%
34 ft elev
40K· 24.85 mi
11:43/mi
4:08:12
↓ 200.3%
20 ft elev
25.2M
12:08/mi
4:12:23
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
10:05/mi
4:22:40
↑ 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
Time2:03:44
Pace9:26 /mi
2nd Half
Distance13.11 mi
Time2:18:56
Pace10:36 /mi
📊Positive Split: 12.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:4031:4210:1231:42
10:12
-
10K
6.21 mi12:16:5759:599:3928:17
9:06
-1:06
15K
9.32 mi12:45:431:28:459:3128:46
9:16
+0:10
20K
12.43 mi13:14:261:57:289:2728:43
9:15
-0:01
Half
13.11 mi13:20:422:03:449:266:16
9:11
-0:04
25K
15.53 mi13:46:162:29:189:3725:34
10:33
+1:22
30K
18.64 mi14:17:023:00:049:4030:46
9:54
-0:39
20M
20.00 mi14:32:063:15:089:4515:04
11:05
+1:11
21M
21.00 mi14:43:593:27:019:5111:53
11:53
+0:48
35K
21.75 mi14:52:023:35:049:538:03
10:46
-1:07
23M
23.00 mi15:05:293:48:319:5613:27
10:45
-0:01
24M
24.00 mi15:15:093:58:119:559:40
9:40
-1:05
40K
24.85 mi15:25:104:08:129:5910:01
11:43
+2:03
25.2M
25.20 mi15:29:214:12:2310:014:11
12:08
+0:25
Finish
26.22 mi15:39:384:22:4010:0210:17
10:05
-2:03

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

9:06 /mi

Average Pace

10:02 /mi

Slowest Pace

12:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:42

39% of race

Time at Steady Pace

1:38:19

37% of race

Time at Slower Pace

1:02:39

24% 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 mi11:48:4031:4210:1231:42
10:12
#23958
10K
6.21 mi12:16:5759:599:3928:17
9:06
#22765
15K
9.32 mi12:45:431:28:459:3128:46
9:16
#22386
20K
12.43 mi13:14:261:57:289:2728:43
9:15
#21955
Half
13.11 mi13:20:422:03:449:266:16
9:11
#21904
25K
15.53 mi13:46:162:29:189:3725:34
10:33
#22236
30K
18.64 mi14:17:023:00:049:4030:46
9:54
#21950
20M
20.00 mi14:32:063:15:089:4515:04
11:05
#22041
21M
21.00 mi14:43:593:27:019:5111:53
11:53
#22090
35K
21.75 mi14:52:023:35:049:538:03
10:46
#22102
23M
23.00 mi15:05:293:48:319:5613:27
10:45
#22089
24M
24.00 mi15:15:093:58:119:559:40
9:40
#22001
40K
24.85 mi15:25:104:08:129:5910:01
11:43
#22067
25.2M
25.20 mi15:29:214:12:2310:014:11
12:08
#22083
Finish
26.22 mi15:39:384:22:4010:0210:17
10:05
#22075
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi239589867986721514(Top 81%)8509(Top 74%)8509(Top 468%)
10K6.21 mi3.10 mi22765+11939234+6339234+63321302(Top 80%)8446(Top 74%)8446(Top 465%)
15K9.32 mi3.11 mi22386+3799035+1999035+19921514(Top 81%)8509(Top 74%)8509(Top 468%)
20K12.43 mi3.11 mi21955+4318810+2258810+22520755(Top 78%)8093(Top 71%)8093(Top 445%)
Half13.11 mi0.68 mi21904+518779+318779+3121150(Top 79%)8344(Top 73%)8344(Top 459%)
25K15.53 mi2.42 mi22236-3328966-1878966-18723265(Top 87%)9534(Top 83%)9534(Top 525%)
30K18.64 mi3.11 mi21950+2868808+1588808+15820765(Top 78%)8205(Top 72%)8205(Top 452%)
20M20.00 mi1.36 mi22041-918870-628870-6222861(Top 86%)9437(Top 83%)9437(Top 519%)
21M21.00 mi1.00 mi22090-498909-398909-3922565(Top 85%)9315(Top 82%)9315(Top 513%)
35K21.75 mi0.75 mi22102-128922-138922-1322849(Top 86%)9510(Top 83%)9510(Top 523%)
23M23.00 mi1.25 mi22089+138923-18923-121864(Top 82%)9003(Top 79%)9003(Top 495%)
24M24.00 mi1.00 mi22001+888878+458878+4519800(Top 74%)7871(Top 69%)7871(Top 433%)
40K24.85 mi0.85 mi22067-668928-508928-5023528(Top 88%)9955(Top 87%)9955(Top 548%)
25.2M25.20 mi0.35 mi22083-168940-128940-1222743(Top 85%)9520(Top 83%)9520(Top 524%)
Finish26.22 mi1.02 mi22075+88946-68946-622011(Top 83%)9122(Top 80%)9122(Top 502%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

21514

Females

8509

F45-49

8509

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

21302

Females

8446

F45-49

8446

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

21514

Females

8509

F45-49

8509

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

20755

Females

8093

F45-49

8093

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

21150

Females

8344

F45-49

8344

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

23265

Females

9534

F45-49

9534

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

20765

Females

8205

F45-49

8205

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

22861

Females

9437

F45-49

9437

20M→21M

20.0 - 21.0 mi

Top 85%
×8story building
+106ft-24ft

Overall

22565

Females

9315

F45-49

9315

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

22849

Females

9510

F45-49

9510

35K→23M

21.8 - 23.0 mi

Top 82%
×5story building
+23ft-63ft

Overall

21864

Females

9003

F45-49

9003

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

19800

Females

7871

F45-49

7871

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

23528

Females

9955

F45-49

9955

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

22743

Females

9520

F45-49

9520

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2story building
+22ft-21ft

Overall

22011

Females

9122

F45-49

9122

Passing Analysis

Category:
Athletes Passed
2757
Passed By
874
Net Change
+1883
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23958
5K → 10K11996+1193#23958#22765
10K → 15K40425+379#22765#22386
15K → 20K44110+431#22386#21955
20K → Half565+51#21955#21904
Half → 25K32364-332#21904#22236
25K → 30K30721+286#22236#21950
30K → 20M33124-91#21950#22041
20M → 21M4493-49#22041#22090
21M → 35K2234-12#22090#22102
35K → 23M5542+13#22102#22089
23M → 24M935+88#22089#22001
24M → 40K2187-66#22001#22067
40K → 25.2M1127-16#22067#22083
25.2M → Finish3931+8#22083#22075
TOTALS2757874+1883
📊

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