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BOSTON MARATHON 2023

Jennifer Kelly

Bib: 29738•F

MA

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

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
10:04/mi
31:16
↑ 97↓ 3451.5%
10K· 6.21 mi
9:44/mi
1:01:31
↑ 79↓ 1380.4%
15K· 9.32 mi
9:45/mi
1:31:50
↑ 67↓ 78
20K· 12.43 mi
9:50/mi
2:02:24
↑ 106↓ 860.1%
Half· 13.11 mi
9:46/mi
2:09:04
↑ 19↓ 370.5%
25K· 15.53 mi
9:59/mi
2:33:17
↑ 66↓ 880.2%
30K· 18.64 mi
10:20/mi
3:05:24
↑ 181↓ 1480.2%
20M
10:17/mi
3:19:23
↑ 64↓ 500.2%
21M
10:51/mi
3:30:14
↑ 106↓ 241.6%
35K· 21.75 mi
9:59/mi
3:37:42
↑ 17↓ 861.7%
23M
10:15/mi
3:50:32
↑ 23↓ 630.6%
24M
10:05/mi
4:00:37
↓ 821.3%
40K· 24.85 mi
10:09/mi
4:09:18
↓ 200.3%
25.2M
10:41/mi
4:12:59
↑ 13↓ 160.2%
Finish· 26.22 mi
9:28/mi
4:22:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:04
Pace9:51 /mi
2nd Half
Distance13.11 mi
Time2:13:34
Pace10:11 /mi
📊Positive Split: 3.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:0831:1610:0431:16
10:04
-
10K
6.21 mi12:20:231:01:319:5430:15
9:44
-0:20
15K
9.32 mi12:50:421:31:509:5130:19
9:45
+0:01
20K
12.43 mi13:21:162:02:249:5130:34
9:50
+0:05
Half
13.11 mi13:27:562:09:049:516:40
9:46
-0:04
25K
15.53 mi13:52:092:33:179:5224:13
9:59
+0:13
30K
18.64 mi14:24:163:05:249:5732:07
10:20
+0:21
20M
20.00 mi14:38:153:19:239:5813:59
10:17
-0:03
21M
21.00 mi14:49:063:30:1410:0110:51
10:51
+0:34
35K
21.75 mi14:56:343:37:4210:017:28
9:59
-0:52
23M
23.00 mi15:09:243:50:3210:0112:50
10:15
+0:16
24M
24.00 mi15:19:294:00:3710:0210:05
10:05
-0:10
40K
24.85 mi15:28:104:09:1810:028:41
10:09
+0:04
25.2M
25.20 mi15:31:514:12:5910:023:41
10:41
+0:32
Finish
26.22 mi15:41:304:22:3810:019:39
9:28
-1:13

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

9:28 /mi

Average Pace

10:01 /mi

Slowest Pace

10:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:08:06

94% of race

Time at Steady Pace

14:32

6% of race

Time at Slower Pace

0:00

0% 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 mi11:50:0831:1610:0431:16
10:04
#23589
10K
6.21 mi12:20:231:01:319:5430:15
9:44
#23383
15K
9.32 mi12:50:421:31:509:5130:19
9:45
#23262
20K
12.43 mi13:21:162:02:249:5130:34
9:50
#23065
Half
13.11 mi13:27:562:09:049:516:40
9:46
#23047
25K
15.53 mi13:52:092:33:179:5224:13
9:59
#22890
30K
18.64 mi14:24:163:05:249:5732:07
10:20
#22685
20M
20.00 mi14:38:153:19:239:5813:59
10:17
#22562
21M
21.00 mi14:49:063:30:1410:0110:51
10:51
#22452
35K
21.75 mi14:56:343:37:4210:017:28
9:59
#22403
23M
23.00 mi15:09:243:50:3210:0112:50
10:15
#22307
24M
24.00 mi15:19:294:00:3710:0210:05
10:05
#22251
40K
24.85 mi15:28:104:09:1810:028:41
10:09
#22183
25.2M
25.20 mi15:31:514:12:5910:023:41
10:41
#22142
Finish
26.22 mi15:41:304:22:3810:019:39
9:28
#22073
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi235899694969422946(Top 86%)9313(Top 82%)9313(Top 513%)
10K6.21 mi3.10 mi23383+2069561+1339561+13323131(Top 87%)9403(Top 82%)9403(Top 518%)
15K9.32 mi3.11 mi23262+1219492+699492+6922946(Top 86%)9313(Top 82%)9313(Top 513%)
20K12.43 mi3.11 mi23065+1979381+1119381+11122496(Top 85%)9080(Top 79%)9080(Top 500%)
Half13.11 mi0.68 mi23047+189373+89373+822808(Top 86%)9245(Top 81%)9245(Top 509%)
25K15.53 mi2.42 mi22890+1579303+709303+7022200(Top 83%)8946(Top 78%)8946(Top 492%)
30K18.64 mi3.11 mi22685+2059225+789225+7821864(Top 82%)8827(Top 77%)8827(Top 486%)
20M20.00 mi1.36 mi22562+1239170+559170+5521260(Top 80%)8560(Top 75%)8560(Top 471%)
21M21.00 mi1.00 mi22452+1109116+549116+5420514(Top 77%)8202(Top 72%)8202(Top 451%)
35K21.75 mi0.75 mi22403+499090+269090+2621238(Top 80%)8626(Top 76%)8626(Top 475%)
23M23.00 mi1.25 mi22307+969046+449046+4420727(Top 78%)8363(Top 73%)8363(Top 460%)
24M24.00 mi1.00 mi22251+569018+289018+2821042(Top 79%)8572(Top 75%)8572(Top 472%)
40K24.85 mi0.85 mi22183+688986+328986+3220400(Top 77%)8281(Top 72%)8281(Top 456%)
25.2M25.20 mi0.35 mi22142+418970+168970+1619704(Top 74%)7912(Top 69%)7912(Top 435%)
Finish26.22 mi1.02 mi22073+698945+258945+2520041(Top 75%)8026(Top 70%)8026(Top 442%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21story building
+97ft-345ft

Overall

22946

Females

9313

F45-49

9313

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

23131

Females

9403

F45-49

9403

10K→15K

6.2 - 9.3 mi

Top 86%
×3story building
+67ft-78ft

Overall

22946

Females

9313

F45-49

9313

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

22496

Females

9080

F45-49

9080

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

22808

Females

9245

F45-49

9245

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

22200

Females

8946

F45-49

8946

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

21864

Females

8827

F45-49

8827

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

21260

Females

8560

F45-49

8560

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

20514

Females

8202

F45-49

8202

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

21238

Females

8626

F45-49

8626

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

20727

Females

8363

F45-49

8363

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

21042

Females

8572

F45-49

8572

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

20400

Females

8281

F45-49

8281

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

19704

Females

7912

F45-49

7912

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

20041

Females

8026

F45-49

8026

Passing Analysis

Category:
Athletes Passed
1905
Passed By
389
Net Change
+1516
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23589
5K → 10K332126+206#23589#23383
10K → 15K19978+121#23383#23262
15K → 20K23437+197#23262#23065
20K → Half3820+18#23065#23047
Half → 25K17619+157#23047#22890
25K → 30K24237+205#22890#22685
30K → 20M1318+123#22685#22562
20M → 21M12212+110#22562#22452
21M → 35K6011+49#22452#22403
35K → 23M10610+96#22403#22307
23M → 24M7216+56#22307#22251
24M → 40K746+68#22251#22183
40K → 25.2M432+41#22183#22142
25.2M → Finish767+69#22142#22073
TOTALS1905389+1516
📊

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