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BOSTON MARATHON 2023

Jennifer Stong

Bib: 22056•F

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/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
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
8:38/mi
26:48
↑ 97↓ 3451.5%
10K· 6.21 mi
8:28/mi
53:06
↑ 79↓ 1380.4%
15K· 9.32 mi
8:35/mi
1:19:46
↑ 67↓ 78
20K· 12.43 mi
8:50/mi
1:47:12
↑ 106↓ 860.1%
Half· 13.11 mi
8:46/mi
1:53:11
↑ 19↓ 370.5%
25K· 15.53 mi
9:06/mi
2:15:14
↑ 66↓ 880.2%
30K· 18.64 mi
9:31/mi
2:44:48
↑ 181↓ 1480.2%
20M
9:31/mi
2:57:44
↑ 64↓ 500.2%
21M
10:22/mi
3:08:06
↑ 106↓ 241.6%
35K· 21.75 mi
9:05/mi
3:14:54
↑ 17↓ 861.7%
23M
9:41/mi
3:27:01
↑ 23↓ 630.6%
24M
9:30/mi
3:36:31
↓ 821.3%
40K· 24.85 mi
9:45/mi
3:44:51
↓ 200.3%
25.2M
10:32/mi
3:48:29
↑ 13↓ 160.2%
Finish· 26.22 mi
9:29/mi
3:58:09
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:11
Pace8:38 /mi
2nd Half
Distance13.11 mi
Time2:04:58
Pace9:32 /mi
📊Positive Split: 10.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:0526:488:3826:48
8:38
-
10K
6.21 mi11:48:2353:068:3326:18
8:28
-0:10
15K
9.32 mi12:15:031:19:468:3326:40
8:35
+0:07
20K
12.43 mi12:42:291:47:128:3827:26
8:50
+0:15
Half
13.11 mi12:48:281:53:118:385:59
8:46
-0:04
25K
15.53 mi13:10:312:15:148:4222:03
9:06
+0:20
30K
18.64 mi13:40:052:44:488:5029:34
9:31
+0:25
20M
20.00 mi13:53:012:57:448:5312:56
9:31
0:00
21M
21.00 mi14:03:233:08:068:5710:22
10:22
+0:51
35K
21.75 mi14:10:113:14:548:586:48
9:05
-1:17
23M
23.00 mi14:22:183:27:019:0012:07
9:41
+0:36
24M
24.00 mi14:31:483:36:319:019:30
9:30
-0:11
40K
24.85 mi14:40:083:44:519:038:20
9:45
+0:15
25.2M
25.20 mi14:43:463:48:299:043:38
10:32
+0:47
Finish
26.22 mi14:53:263:58:099:059:40
9:29
-1:03

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

8:28 /mi

Average Pace

9:05 /mi

Slowest Pace

10:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:02

60% of race

Time at Steady Pace

1:22:07

34% of race

Time at Slower Pace

14:00

6% of race

Average Pace: 9:05 /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 mi11:22:0526:488:3826:48
8:38
#18405
10K
6.21 mi11:48:2353:068:3326:18
8:28
#18176
15K
9.32 mi12:15:031:19:468:3326:40
8:35
#18223
20K
12.43 mi12:42:291:47:128:3827:26
8:50
#18363
Half
13.11 mi12:48:281:53:118:385:59
8:46
#18412
25K
15.53 mi13:10:312:15:148:4222:03
9:06
#18606
30K
18.64 mi13:40:052:44:488:5029:34
9:31
#18798
20M
20.00 mi13:53:012:57:448:5312:56
9:31
#18811
21M
21.00 mi14:03:233:08:068:5710:22
10:22
#18845
35K
21.75 mi14:10:113:14:548:586:48
9:05
#18820
23M
23.00 mi14:22:183:27:019:0012:07
9:41
#18837
24M
24.00 mi14:31:483:36:319:019:30
9:30
#18860
40K
24.85 mi14:40:083:44:519:038:20
9:45
#18886
25.2M
25.20 mi14:43:463:48:299:043:38
10:32
#18905
Finish
26.22 mi14:53:263:58:099:059:40
9:29
#18979
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi184056817681718346(Top 69%)6705(Top 59%)6705(Top 556%)
10K6.21 mi3.10 mi18176+2296633+1846633+18418042(Top 68%)6502(Top 57%)6502(Top 539%)
15K9.32 mi3.11 mi18223-476652-196652-1918346(Top 69%)6705(Top 59%)6705(Top 556%)
20K12.43 mi3.11 mi18363-1406729-776729-7718835(Top 71%)6988(Top 61%)6988(Top 579%)
Half13.11 mi0.68 mi18412-496752-236752-2319374(Top 73%)7307(Top 64%)7307(Top 605%)
25K15.53 mi2.42 mi18606-1946897-1456897-14519395(Top 73%)7365(Top 64%)7365(Top 610%)
30K18.64 mi3.11 mi18798-1927030-1337030-13319491(Top 73%)7466(Top 65%)7466(Top 619%)
20M20.00 mi1.36 mi18811-137044-147044-1418938(Top 71%)7264(Top 64%)7264(Top 602%)
21M21.00 mi1.00 mi18845-347080-367080-3619205(Top 72%)7462(Top 65%)7462(Top 618%)
35K21.75 mi0.75 mi18820+257069+117069+1118303(Top 69%)7004(Top 61%)7004(Top 580%)
23M23.00 mi1.25 mi18837-177098-297098-2919002(Top 71%)7408(Top 65%)7408(Top 614%)
24M24.00 mi1.00 mi18860-237123-257123-2519225(Top 72%)7574(Top 66%)7574(Top 628%)
40K24.85 mi0.85 mi18886-267137-147137-1419205(Top 72%)7604(Top 67%)7604(Top 630%)
25.2M25.20 mi0.35 mi18905-197153-167153-1619237(Top 72%)7632(Top 67%)7632(Top 632%)
Finish26.22 mi1.02 mi18979-747202-497202-4920073(Top 75%)8041(Top 70%)8041(Top 666%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

18346

Females

6705

F50-54

6705

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

18042

Females

6502

F50-54

6502

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

18346

Females

6705

F50-54

6705

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

18835

Females

6988

F50-54

6988

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

19374

Females

7307

F50-54

7307

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

19395

Females

7365

F50-54

7365

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

19491

Females

7466

F50-54

7466

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

18938

Females

7264

F50-54

7264

20M→21M

20.0 - 21.0 mi

Top 72%
×8story building
+106ft-24ft

Overall

19205

Females

7462

F50-54

7462

21M→35K

21.0 - 21.8 mi

Top 69%
×7story building
+17ft-86ft

Overall

18303

Females

7004

F50-54

7004

35K→23M

21.8 - 23.0 mi

Top 71%
×5story building
+23ft-63ft

Overall

19002

Females

7408

F50-54

7408

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

19225

Females

7574

F50-54

7574

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

19205

Females

7604

F50-54

7604

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

19237

Females

7632

F50-54

7632

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

20073

Females

8041

F50-54

8041

Passing Analysis

Category:
Athletes Passed
1356
Passed By
1930
Net Change
-574
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18405
5K → 10K452223+229#18405#18176
10K → 15K168215-47#18176#18223
15K → 20K117257-140#18223#18363
20K → Half1766-49#18363#18412
Half → 25K80274-194#18412#18606
25K → 30K108300-192#18606#18798
30K → 20M8497-13#18798#18811
20M → 21M70104-34#18811#18845
21M → 35K5732+25#18845#18820
35K → 23M6986-17#18820#18837
23M → 24M5477-23#18837#18860
24M → 40K3763-26#18860#18886
40K → 25.2M2544-19#18886#18905
25.2M → Finish1892-74#18905#18979
TOTALS13561930-574
📊

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