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BOSTON MARATHON 2023

Natalie Jensen

Bib: 10055•F

UT

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 26%
Gender (Female)
#0 / 11423
Top 7%
Division (F18-39)
#0 / 4884
Top 14%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:36
Rank: #7961
Start → 5K
22:36 | 7:16/mi
10K· 6.21 mi
43:50
Rank: #6833 (+1128)
5K → 10K
21:14 | 6:50/mi
15K· 9.32 mi
1:05:05
Rank: #6399 (+434)
10K → 15K
21:15 | 6:50/mi
20K· 12.43 mi
1:26:43
Rank: #6216 (+183)
15K → 20K
21:38 | 6:58/mi
Half· 13.11 mi
1:31:23
Rank: #6187 (+29)
20K → Half
4:40 | 6:50/mi
25K· 15.53 mi
1:48:28
Rank: #6103 (+84)
Half → 25K
17:05 | 7:03/mi
30K· 18.64 mi
2:11:11
Rank: #6045 (+58)
25K → 30K
22:43 | 7:19/mi
20M
2:21:17
Rank: #6029 (+16)
30K → 20M
10:06 | 7:26/mi
21M
2:29:24
Rank: #6093 (-64)
20M → 21M
8:07 | 8:07/mi
35K· 21.75 mi
2:34:57
Rank: #6116 (-23)
21M → 35K
5:33 | 7:25/mi
23M
2:45:30
Rank: #6377 (-261)
35K → 23M
10:33 | 8:26/mi
24M
2:54:04
Rank: #6647 (-270)
23M → 24M
8:34 | 8:34/mi
40K· 24.85 mi
3:00:53
Rank: #6713 (-66)
24M → 40K
6:49 | 7:58/mi
25.2M
3:03:55
Rank: #6753 (-40)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
3:11:46
Rank: #6843 (-90)
25.2M → Finish
7:51 | 7:42/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:23
Pace6:58 /mi
2nd Half
Distance13.11 mi
Time1:40:23
Pace7:39 /mi
📊Positive Split: 9.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:2422:367:1622:36
7:16
-
10K
6.21 mi11:10:3843:507:0321:14
6:50
-0:26
15K
9.32 mi11:31:531:05:056:5921:15
6:50
0:00
20K
12.43 mi11:53:311:26:436:5921:38
6:58
+0:08
Half
13.11 mi11:58:111:31:236:584:40
6:50
-0:08
25K
15.53 mi12:15:161:48:286:5917:05
7:03
+0:13
30K
18.64 mi12:37:592:11:117:0222:43
7:19
+0:16
20M
20.00 mi12:48:052:21:177:0410:06
7:26
+0:07
21M
21.00 mi12:56:122:29:247:078:07
8:07
+0:41
35K
21.75 mi13:01:452:34:577:075:33
7:25
-0:42
23M
23.00 mi13:12:182:45:307:1210:33
8:26
+1:01
24M
24.00 mi13:20:522:54:047:158:34
8:34
+0:08
40K
24.85 mi13:27:413:00:537:176:49
7:58
-0:36
25.2M
25.20 mi13:30:433:03:557:183:02
8:48
+0:50
Finish
26.22 mi13:38:343:11:467:197:51
7:42
-1:06

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

6:50 /mi

Average Pace

7:19 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:25:52

45% of race

Time at Steady Pace

1:08:49

36% of race

Time at Slower Pace

37:05

19% of race

Average Pace: 7:19 /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 mi10:49:2422:367:1622:36
7:16
#7961
10K
6.21 mi11:10:3843:507:0321:14
6:50
#6833
15K
9.32 mi11:31:531:05:056:5921:15
6:50
#6399
20K
12.43 mi11:53:311:26:436:5921:38
6:58
#6216
Half
13.11 mi11:58:111:31:236:584:40
6:50
#6187
25K
15.53 mi12:15:161:48:286:5917:05
7:03
#6103
30K
18.64 mi12:37:592:11:117:0222:43
7:19
#6045
20M
20.00 mi12:48:052:21:177:0410:06
7:26
#6029
21M
21.00 mi12:56:122:29:247:078:07
8:07
#6093
35K
21.75 mi13:01:452:34:577:075:33
7:25
#6116
23M
23.00 mi13:12:182:45:307:1210:33
8:26
#6377
24M
24.00 mi13:20:522:54:047:158:34
8:34
#6647
40K
24.85 mi13:27:413:00:537:176:49
7:58
#6713
25.2M
25.20 mi13:30:433:03:557:183:02
8:48
#6753
Finish
26.22 mi13:38:343:11:467:197:51
7:42
#6843
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi7961100010005493(Top 21%)430(Top 4%)430(Top 9%)
10K6.21 mi3.10 mi6833+1128683+317683+3175638(Top 21%)459(Top 4%)459(Top 9%)
15K9.32 mi3.11 mi6399+434605+78605+785493(Top 21%)430(Top 4%)430(Top 9%)
20K12.43 mi3.11 mi6216+183566+39566+395761(Top 22%)481(Top 4%)481(Top 10%)
Half13.11 mi0.68 mi6187+29553+13553+135684(Top 21%)459(Top 4%)459(Top 9%)
25K15.53 mi2.42 mi6103+84538+15538+155840(Top 22%)515(Top 5%)515(Top 11%)
30K18.64 mi3.11 mi6045+58540-2540-26105(Top 23%)659(Top 6%)659(Top 13%)
20M20.00 mi1.36 mi6029+16549-9549-96376(Top 24%)806(Top 7%)806(Top 17%)
21M21.00 mi1.00 mi6093-64578-29578-298125(Top 31%)1563(Top 14%)1563(Top 32%)
35K21.75 mi0.75 mi6116-23587-9587-97954(Top 30%)1461(Top 13%)1461(Top 30%)
23M23.00 mi1.25 mi6377-261663-76663-7612747(Top 48%)3926(Top 34%)3926(Top 80%)
24M24.00 mi1.00 mi6647-270752-89752-8914865(Top 56%)5142(Top 45%)5142(Top 105%)
40K24.85 mi0.85 mi6713-66791-39791-399877(Top 37%)2575(Top 23%)2575(Top 53%)
25.2M25.20 mi0.35 mi6753-40812-21812-2111315(Top 43%)3327(Top 29%)3327(Top 68%)
Finish26.22 mi1.02 mi6843-90855-43855-4310009(Top 38%)2696(Top 24%)2696(Top 55%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5493

Females

430

F18-39

430

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5638

Females

459

F18-39

459

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5493

Females

430

F18-39

430

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

5761

Females

481

F18-39

481

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5684

Females

459

F18-39

459

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

5840

Females

515

F18-39

515

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

6105

Females

659

F18-39

659

30K→20M

18.6 - 20.0 mi

Top 24%
×5stories
+64ft-50ft

Overall

6376

Females

806

F18-39

806

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8125

Females

1563

F18-39

1563

21M→35K

21.0 - 21.8 mi

Top 30%
×7stories
+17ft-86ft

Overall

7954

Females

1461

F18-39

1461

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

12747

Females

3926

F18-39

3926

23M→24M

23.0 - 24.0 mi

Top 56%
×6stories
+12ft-82ft

Overall

14865

Females

5142

F18-39

5142

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9877

Females

2575

F18-39

2575

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11315

Females

3327

F18-39

3327

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10009

Females

2696

F18-39

2696

Passing Analysis

Category:
Athletes Passed
2326
Passed By
1208
Net Change
+1118
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7961
5K → 10K11324+1128#7961#6833
10K → 15K4439+434#6833#6399
15K → 20K20219+183#6399#6216
20K → Half4011+29#6216#6187
Half → 25K12541+84#6187#6103
25K → 30K15395+58#6103#6045
30K → 20M6549+16#6045#6029
20M → 21M3195-64#6029#6093
21M → 35K2649-23#6093#6116
35K → 23M23284-261#6116#6377
23M → 24M5275-270#6377#6647
24M → 40K45111-66#6647#6713
40K → 25.2M1454-40#6713#6753
25.2M → Finish22112-90#6753#6843
TOTALS23261208+1118
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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