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BOSTON MARATHON 2023

Michaela Jansen

Bib: 19019•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 47%
Gender (Female)
#0 / 11423
Top 29%
Masters (Masters Women)
#0 / 6539
Top 16%
Division (F50-54)
#0 / 1207
Top 9%
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
8:01/mi
24:54
↑ 97↓ 3451.5%
10K· 6.21 mi
7:53/mi
49:25
↑ 79↓ 1380.4%
15K· 9.32 mi
7:54/mi
1:13:58
↑ 67↓ 78
20K· 12.43 mi
7:58/mi
1:38:43
↑ 106↓ 860.1%
Half· 13.11 mi
7:50/mi
1:44:04
↑ 19↓ 370.5%
25K· 15.53 mi
7:57/mi
2:03:21
↑ 66↓ 880.2%
30K· 18.64 mi
8:10/mi
2:28:43
↑ 181↓ 1480.2%
20M
8:17/mi
2:39:58
↑ 64↓ 500.2%
21M
8:43/mi
2:48:41
↑ 106↓ 241.6%
35K· 21.75 mi
7:56/mi
2:54:37
↑ 17↓ 861.7%
23M
8:02/mi
3:04:40
↑ 23↓ 630.6%
24M
7:54/mi
3:12:34
↓ 821.3%
40K· 24.85 mi
8:09/mi
3:19:32
↓ 200.3%
25.2M
8:39/mi
3:22:31
↑ 13↓ 160.2%
Finish· 26.22 mi
7:48/mi
3:30:28
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:04
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:46:24
Pace8:07 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:2824:548:0124:54
8:01
-
10K
6.21 mi11:40:5949:257:5724:31
7:53
-0:08
15K
9.32 mi12:05:321:13:587:5624:33
7:54
+0:01
20K
12.43 mi12:30:171:38:437:5724:45
7:58
+0:04
Half
13.11 mi12:35:381:44:047:565:21
7:50
-0:08
25K
15.53 mi12:54:552:03:217:5619:17
7:57
+0:07
30K
18.64 mi13:20:172:28:437:5925:22
8:10
+0:13
20M
20.00 mi13:31:322:39:588:0011:15
8:17
+0:07
21M
21.00 mi13:40:152:48:418:028:43
8:43
+0:26
35K
21.75 mi13:46:112:54:378:025:56
7:56
-0:47
23M
23.00 mi13:56:143:04:408:0210:03
8:02
+0:06
24M
24.00 mi14:04:083:12:348:017:54
7:54
-0:08
40K
24.85 mi14:11:063:19:328:026:58
8:09
+0:15
25.2M
25.20 mi14:14:053:22:318:022:59
8:39
+0:30
Finish
26.22 mi14:22:023:30:288:027:57
7:48
-0:51

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

7:48 /mi

Average Pace

8:02 /mi

Slowest Pace

8:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:18:46

94% of race

Time at Steady Pace

11:42

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:02 /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 mi11:16:2824:548:0124:54
8:01
#14129
10K
6.21 mi11:40:5949:257:5724:31
7:53
#14006
15K
9.32 mi12:05:321:13:587:5624:33
7:54
#13869
20K
12.43 mi12:30:171:38:437:5724:45
7:58
#13650
Half
13.11 mi12:35:381:44:047:565:21
7:50
#13624
25K
15.53 mi12:54:552:03:217:5619:17
7:57
#13388
30K
18.64 mi13:20:172:28:437:5925:22
8:10
#13124
20M
20.00 mi13:31:322:39:588:0011:15
8:17
#13040
21M
21.00 mi13:40:152:48:418:028:43
8:43
#12925
35K
21.75 mi13:46:112:54:378:025:56
7:56
#12859
23M
23.00 mi13:56:143:04:408:0210:03
8:02
#12674
24M
24.00 mi14:04:083:12:348:017:54
7:54
#12566
40K
24.85 mi14:11:063:19:328:026:58
8:09
#12505
25.2M
25.20 mi14:14:053:22:318:022:59
8:39
#12469
Finish
26.22 mi14:22:023:30:288:027:57
7:48
#12394
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi141294107410713568(Top 51%)3815(Top 33%)3815(Top 316%)
10K6.21 mi3.10 mi14006+1234044+634044+6313913(Top 52%)3989(Top 35%)3989(Top 330%)
15K9.32 mi3.11 mi13869+1373977+673977+6713568(Top 51%)3815(Top 33%)3815(Top 316%)
20K12.43 mi3.11 mi13650+2193882+953882+9513157(Top 49%)3627(Top 32%)3627(Top 300%)
Half13.11 mi0.68 mi13624+263861+213861+2113148(Top 49%)3582(Top 31%)3582(Top 297%)
25K15.53 mi2.42 mi13388+2363739+1223739+12212356(Top 46%)3284(Top 29%)3284(Top 272%)
30K18.64 mi3.11 mi13124+2643625+1143625+11412106(Top 45%)3244(Top 28%)3244(Top 269%)
20M20.00 mi1.36 mi13040+843592+333592+3312227(Top 46%)3409(Top 30%)3409(Top 282%)
21M21.00 mi1.00 mi12925+1153543+493543+4911788(Top 44%)3294(Top 29%)3294(Top 273%)
35K21.75 mi0.75 mi12859+663524+193524+1911658(Top 44%)3237(Top 28%)3237(Top 268%)
23M23.00 mi1.25 mi12674+1853433+913433+919975(Top 37%)2507(Top 22%)2507(Top 208%)
24M24.00 mi1.00 mi12566+1083392+413392+4110568(Top 40%)2875(Top 25%)2875(Top 238%)
40K24.85 mi0.85 mi12505+613379+133379+1311048(Top 41%)3173(Top 28%)3173(Top 263%)
25.2M25.20 mi0.35 mi12469+363368+113368+1110533(Top 40%)2959(Top 26%)2959(Top 245%)
Finish26.22 mi1.02 mi12394+753345+233345+2310714(Top 40%)3046(Top 27%)3046(Top 252%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

13568

Females

3815

F50-54

3815

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

13913

Females

3989

F50-54

3989

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

13568

Females

3815

F50-54

3815

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13157

Females

3627

F50-54

3627

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

13148

Females

3582

F50-54

3582

Half→25K

13.1 - 15.5 mi

Top 46%
×4story building
+66ft-88ft

Overall

12356

Females

3284

F50-54

3284

25K→30K

15.5 - 18.6 mi

Top 45%
×9story building
+181ft-148ft

Overall

12106

Females

3244

F50-54

3244

30K→20M

18.6 - 20.0 mi

Top 46%
×5story building
+64ft-50ft

Overall

12227

Females

3409

F50-54

3409

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

11788

Females

3294

F50-54

3294

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

11658

Females

3237

F50-54

3237

35K→23M

21.8 - 23.0 mi

Top 37%
×5story building
+23ft-63ft

Overall

9975

Females

2507

F50-54

2507

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

10568

Females

2875

F50-54

2875

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

11048

Females

3173

F50-54

3173

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

10533

Females

2959

F50-54

2959

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

10714

Females

3046

F50-54

3046

Passing Analysis

Category:
Athletes Passed
2482
Passed By
747
Net Change
+1735
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14129
5K → 10K353230+123#14129#14006
10K → 15K258121+137#14006#13869
15K → 20K28970+219#13869#13650
20K → Half4014+26#13650#13624
Half → 25K26933+236#13624#13388
25K → 30K32763+264#13388#13124
30K → 20M13248+84#13124#13040
20M → 21M15540+115#13040#12925
21M → 35K8620+66#12925#12859
35K → 23M19510+185#12859#12674
23M → 24M13527+108#12674#12566
24M → 40K8726+61#12566#12505
40K → 25.2M4812+36#12505#12469
25.2M → Finish10833+75#12469#12394
TOTALS2482747+1735
📊

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