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BOSTON MARATHON 2023

Jennifer Stewart

Bib: 15673•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 42%
Gender (Female)
#0 / 11423
Top 24%
Masters (Masters Women)
#0 / 6539
Top 12%
Division (F45-49)
#0 / 1817
Top 12%
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
7:42/mi
23:56
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
47:56
↑ 79↓ 1380.4%
15K· 9.32 mi
7:46/mi
1:12:03
↑ 67↓ 78
20K· 12.43 mi
7:49/mi
1:36:21
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:41:37
↑ 19↓ 370.5%
25K· 15.53 mi
7:52/mi
2:00:42
↑ 66↓ 880.2%
30K· 18.64 mi
8:00/mi
2:25:32
↑ 181↓ 1480.2%
20M
8:05/mi
2:36:31
↑ 64↓ 500.2%
21M
8:33/mi
2:45:04
↑ 106↓ 241.6%
35K· 21.75 mi
7:45/mi
2:50:52
↑ 17↓ 861.7%
23M
8:03/mi
3:00:57
↑ 23↓ 630.6%
24M
7:57/mi
3:08:54
↓ 821.3%
40K· 24.85 mi
8:02/mi
3:15:46
↓ 200.3%
25.2M
8:39/mi
3:18:45
↑ 13↓ 160.2%
Finish· 26.22 mi
7:52/mi
3:26:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:37
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:45:09
Pace8:01 /mi
📊Positive Split: 3.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:3723:567:4223:56
7:42
-
10K
6.21 mi11:18:3747:567:4324:00
7:43
+0:01
15K
9.32 mi11:42:441:12:037:4424:07
7:46
+0:03
20K
12.43 mi12:07:021:36:217:4524:18
7:49
+0:03
Half
13.11 mi12:12:181:41:377:455:16
7:43
-0:06
25K
15.53 mi12:31:232:00:427:4619:05
7:52
+0:09
30K
18.64 mi12:56:132:25:327:4824:50
8:00
+0:08
20M
20.00 mi13:07:122:36:317:5010:59
8:05
+0:05
21M
21.00 mi13:15:452:45:047:528:33
8:33
+0:28
35K
21.75 mi13:21:332:50:527:515:48
7:45
-0:48
23M
23.00 mi13:31:383:00:577:5210:05
8:03
+0:18
24M
24.00 mi13:39:353:08:547:527:57
7:57
-0:06
40K
24.85 mi13:46:273:15:467:536:52
8:02
+0:05
25.2M
25.20 mi13:49:263:18:457:532:59
8:39
+0:37
Finish
26.22 mi13:57:273:26:467:548:01
7:52
-0:47

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

7:42 /mi

Average Pace

7:54 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:14

94% of race

Time at Steady Pace

11:32

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:53 /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 mi10:54:3723:567:4223:56
7:42
#11497
10K
6.21 mi11:18:3747:567:4324:00
7:43
#11952
15K
9.32 mi11:42:441:12:037:4424:07
7:46
#12081
20K
12.43 mi12:07:021:36:217:4524:18
7:49
#11995
Half
13.11 mi12:12:181:41:377:455:16
7:43
#12000
25K
15.53 mi12:31:232:00:427:4619:05
7:52
#11912
30K
18.64 mi12:56:132:25:327:4824:50
8:00
#11681
20M
20.00 mi13:07:122:36:317:5010:59
8:05
#11588
21M
21.00 mi13:15:452:45:047:528:33
8:33
#11516
35K
21.75 mi13:21:332:50:527:515:48
7:45
#11460
23M
23.00 mi13:31:383:00:577:5210:05
8:03
#11362
24M
24.00 mi13:39:353:08:547:527:57
7:57
#11334
40K
24.85 mi13:46:273:15:467:536:52
8:02
#11265
25.2M
25.20 mi13:49:263:18:457:532:59
8:39
#11237
Finish
26.22 mi13:57:273:26:467:548:01
7:52
#11217
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi114972593259312406(Top 47%)3133(Top 27%)3133(Top 172%)
10K6.21 mi3.10 mi11952-4552845-2522845-25212480(Top 47%)3136(Top 27%)3136(Top 173%)
15K9.32 mi3.11 mi12081-1292937-922937-9212406(Top 47%)3133(Top 27%)3133(Top 172%)
20K12.43 mi3.11 mi11995+862910+272910+2711930(Top 45%)2927(Top 26%)2927(Top 161%)
Half13.11 mi0.68 mi12000-52918-82918-812075(Top 45%)2953(Top 26%)2953(Top 163%)
25K15.53 mi2.42 mi11912+882888+302888+3011699(Top 44%)2892(Top 25%)2892(Top 159%)
30K18.64 mi3.11 mi11681+2312797+912797+9110862(Top 41%)2573(Top 23%)2573(Top 142%)
20M20.00 mi1.36 mi11588+932761+362761+3610907(Top 41%)2687(Top 24%)2687(Top 148%)
21M21.00 mi1.00 mi11516+722740+212740+2110782(Top 41%)2761(Top 24%)2761(Top 152%)
35K21.75 mi0.75 mi11460+562723+172723+1710343(Top 39%)2532(Top 22%)2532(Top 139%)
23M23.00 mi1.25 mi11362+982696+272696+2710157(Top 38%)2584(Top 23%)2584(Top 142%)
24M24.00 mi1.00 mi11334+282701-52701-510907(Top 41%)3038(Top 27%)3038(Top 167%)
40K24.85 mi0.85 mi11265+692690+112690+1110283(Top 39%)2794(Top 24%)2794(Top 154%)
25.2M25.20 mi0.35 mi11237+282689+12689+110504(Top 39%)2930(Top 26%)2930(Top 161%)
Finish26.22 mi1.02 mi11217+202700-112700-1111178(Top 42%)3284(Top 29%)3284(Top 181%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21story building
+97ft-345ft

Overall

12406

Females

3133

F45-49

3133

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

12480

Females

3136

F45-49

3136

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+67ft-78ft

Overall

12406

Females

3133

F45-49

3133

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

11930

Females

2927

F45-49

2927

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

12075

Females

2953

F45-49

2953

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

11699

Females

2892

F45-49

2892

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

10862

Females

2573

F45-49

2573

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

10907

Females

2687

F45-49

2687

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

10782

Females

2761

F45-49

2761

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

10343

Females

2532

F45-49

2532

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10157

Females

2584

F45-49

2584

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

10907

Females

3038

F45-49

3038

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10283

Females

2794

F45-49

2794

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

10504

Females

2930

F45-49

2930

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2story building
+22ft-21ft

Overall

11178

Females

3284

F45-49

3284

Passing Analysis

Category:
Athletes Passed
1791
Passed By
1511
Net Change
+280
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11497
5K → 10K138593-455#11497#11952
10K → 15K149278-129#11952#12081
15K → 20K208122+86#12081#11995
20K → Half2227-5#11995#12000
Half → 25K17789+88#12000#11912
25K → 30K30170+231#11912#11681
30K → 20M14552+93#11681#11588
20M → 21M12452+72#11588#11516
21M → 35K7620+56#11516#11460
35K → 23M14749+98#11460#11362
23M → 24M7244+28#11362#11334
24M → 40K9930+69#11334#11265
40K → 25.2M5022+28#11265#11237
25.2M → Finish8363+20#11237#11217
TOTALS17911511+280
📊

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