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BOSTON MARATHON 2023

Jennifer Fritzsche

Bib: 17720•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 45%
Gender (Female)
#0 / 11423
Top 28%
Masters (Masters Women)
#0 / 6539
Top 14%
Division (F55-59)
#0 / 815
Top 4%
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
7:59/mi
24:47
↑ 97↓ 3451.5%
10K· 6.21 mi
7:45/mi
48:53
↑ 79↓ 1380.4%
15K· 9.32 mi
8:01/mi
1:13:46
↑ 67↓ 78
20K· 12.43 mi
8:00/mi
1:38:38
↑ 106↓ 860.1%
Half· 13.11 mi
7:49/mi
1:43:58
↑ 19↓ 370.5%
25K· 15.53 mi
7:53/mi
2:03:05
↑ 66↓ 880.2%
30K· 18.64 mi
7:59/mi
2:27:53
↑ 181↓ 1480.2%
20M
8:09/mi
2:38:58
↑ 64↓ 500.2%
21M
8:50/mi
2:47:48
↑ 106↓ 241.6%
35K· 21.75 mi
7:37/mi
2:53:30
↑ 17↓ 861.7%
23M
7:56/mi
3:03:26
↑ 23↓ 630.6%
24M
7:48/mi
3:11:14
↓ 821.3%
40K· 24.85 mi
8:02/mi
3:18:06
↓ 200.3%
25.2M
8:36/mi
3:21:04
↑ 13↓ 160.2%
Finish· 26.22 mi
8:02/mi
3:29:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:58
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:45:17
Pace8:02 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:3624:477:5924:47
7:59
-
10K
6.21 mi11:39:4248:537:5224:06
7:45
-0:14
15K
9.32 mi12:04:351:13:467:5524:53
8:01
+0:16
20K
12.43 mi12:29:271:38:387:5624:52
8:00
-0:01
Half
13.11 mi12:34:471:43:587:565:20
7:49
-0:11
25K
15.53 mi12:53:542:03:057:5519:07
7:53
+0:04
30K
18.64 mi13:18:422:27:537:5624:48
7:59
+0:06
20M
20.00 mi13:29:472:38:587:5711:05
8:09
+0:10
21M
21.00 mi13:38:372:47:487:598:50
8:50
+0:41
35K
21.75 mi13:44:192:53:307:595:42
7:37
-1:13
23M
23.00 mi13:54:153:03:267:599:56
7:56
+0:19
24M
24.00 mi14:02:033:11:147:587:48
7:48
-0:08
40K
24.85 mi14:08:553:18:067:586:52
8:02
+0:14
25.2M
25.20 mi14:11:533:21:047:592:58
8:36
+0:34
Finish
26.22 mi14:20:043:29:157:598:11
8:02
-0:34

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

7:37 /mi

Average Pace

7:59 /mi

Slowest Pace

8:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:27

94% of race

Time at Steady Pace

11:48

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:59 /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 mi11:15:3624:477:5924:47
7:59
#13858
10K
6.21 mi11:39:4248:537:5224:06
7:45
#13328
15K
9.32 mi12:04:351:13:467:5524:53
8:01
#13698
20K
12.43 mi12:29:271:38:387:5624:52
8:00
#13599
Half
13.11 mi12:34:471:43:587:565:20
7:49
#13562
25K
15.53 mi12:53:542:03:057:5519:07
7:53
#13258
30K
18.64 mi13:18:422:27:537:5624:48
7:59
#12763
20M
20.00 mi13:29:472:38:587:5711:05
8:09
#12613
21M
21.00 mi13:38:372:47:487:598:50
8:50
#12587
35K
21.75 mi13:44:192:53:307:595:42
7:37
#12450
23M
23.00 mi13:54:153:03:267:599:56
7:56
#12257
24M
24.00 mi14:02:033:11:147:587:48
7:48
#12146
40K
24.85 mi14:08:553:18:067:586:52
8:02
#12057
25.2M
25.20 mi14:11:533:21:047:592:58
8:36
#12020
Finish
26.22 mi14:20:043:29:157:598:11
8:02
#12031
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi138583934393414457(Top 54%)4349(Top 38%)4349(Top 534%)
10K6.21 mi3.10 mi13328+5303642+2923642+29212749(Top 48%)3282(Top 29%)3282(Top 403%)
15K9.32 mi3.11 mi13698-3703880-2383880-23814457(Top 54%)4349(Top 38%)4349(Top 534%)
20K12.43 mi3.11 mi13599+993843+373843+3713463(Top 51%)3796(Top 33%)3796(Top 466%)
Half13.11 mi0.68 mi13562+373816+273816+2712905(Top 48%)3434(Top 30%)3434(Top 421%)
25K15.53 mi2.42 mi13258+3043652+1643652+16411811(Top 44%)2964(Top 26%)2964(Top 364%)
30K18.64 mi3.11 mi12763+4953408+2443408+24410773(Top 40%)2534(Top 22%)2534(Top 311%)
20M20.00 mi1.36 mi12613+1503342+663342+6611413(Top 43%)2948(Top 26%)2948(Top 362%)
21M21.00 mi1.00 mi12587+263349-73349-712460(Top 47%)3659(Top 32%)3659(Top 449%)
35K21.75 mi0.75 mi12450+1373286+633286+639468(Top 36%)2145(Top 19%)2145(Top 263%)
23M23.00 mi1.25 mi12257+1933199+873199+879340(Top 35%)2200(Top 19%)2200(Top 270%)
24M24.00 mi1.00 mi12146+1113159+403159+409839(Top 37%)2524(Top 22%)2524(Top 310%)
40K24.85 mi0.85 mi12057+893134+253134+2510292(Top 39%)2803(Top 25%)2803(Top 344%)
25.2M25.20 mi0.35 mi12020+373112+223112+2210241(Top 38%)2821(Top 25%)2821(Top 346%)
Finish26.22 mi1.02 mi12031-113143-313143-3112353(Top 46%)3884(Top 34%)3884(Top 477%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

14457

Females

4349

F55-59

4349

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

12749

Females

3282

F55-59

3282

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

14457

Females

4349

F55-59

4349

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

13463

Females

3796

F55-59

3796

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

12905

Females

3434

F55-59

3434

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

11811

Females

2964

F55-59

2964

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

10773

Females

2534

F55-59

2534

30K→20M

18.6 - 20.0 mi

Top 43%
×5story building
+64ft-50ft

Overall

11413

Females

2948

F55-59

2948

20M→21M

20.0 - 21.0 mi

Top 47%
×8story building
+106ft-24ft

Overall

12460

Females

3659

F55-59

3659

21M→35K

21.0 - 21.8 mi

Top 36%
×7story building
+17ft-86ft

Overall

9468

Females

2145

F55-59

2145

35K→23M

21.8 - 23.0 mi

Top 35%
×5story building
+23ft-63ft

Overall

9340

Females

2200

F55-59

2200

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

9839

Females

2524

F55-59

2524

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10292

Females

2803

F55-59

2803

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10241

Females

2821

F55-59

2821

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

12353

Females

3884

F55-59

3884

Passing Analysis

Category:
Athletes Passed
2827
Passed By
1000
Net Change
+1827
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13858
5K → 10K647117+530#13858#13328
10K → 15K84454-370#13328#13698
15K → 20K220121+99#13698#13599
20K → Half5417+37#13599#13562
Half → 25K31713+304#13562#13258
25K → 30K51419+495#13258#12763
30K → 20M18434+150#12763#12613
20M → 21M10781+26#12613#12587
21M → 35K1414+137#12587#12450
35K → 23M2029+193#12450#12257
23M → 24M12514+111#12257#12146
24M → 40K11728+89#12146#12057
40K → 25.2M4912+37#12057#12020
25.2M → Finish6677-11#12020#12031
TOTALS28271000+1827
📊

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