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BOSTON MARATHON 2023

Jennifer Jensen

Bib: 18381•F

WI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 42%
Masters (Masters Women)
#0 / 6539
Top 30%
Division (F40-44)
#0 / 1878
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
8:03/mi
25:02
↑ 97↓ 3451.5%
10K· 6.21 mi
7:56/mi
49:40
↑ 79↓ 1380.4%
15K· 9.32 mi
7:58/mi
1:14:24
↑ 67↓ 78
20K· 12.43 mi
8:40/mi
1:41:19
↑ 106↓ 860.1%
Half· 13.11 mi
8:15/mi
1:46:57
↑ 19↓ 370.5%
25K· 15.53 mi
8:32/mi
2:07:39
↑ 66↓ 880.2%
30K· 18.64 mi
8:39/mi
2:34:31
↑ 181↓ 1480.2%
20M
8:48/mi
2:46:29
↑ 64↓ 500.2%
21M
9:40/mi
2:56:09
↑ 106↓ 241.6%
35K· 21.75 mi
8:12/mi
3:02:17
↑ 17↓ 861.7%
23M
8:31/mi
3:12:57
↑ 23↓ 630.6%
24M
8:12/mi
3:21:09
↓ 821.3%
40K· 24.85 mi
8:16/mi
3:28:13
↓ 200.3%
25.2M
9:20/mi
3:31:26
↑ 13↓ 160.2%
Finish· 26.22 mi
7:58/mi
3:39:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:57
Pace8:09 /mi
2nd Half
Distance13.11 mi
Time1:52:36
Pace8:35 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:2325:028:0325:02
8:03
-
10K
6.21 mi11:41:0149:408:0024:38
7:56
-0:07
15K
9.32 mi12:05:451:14:247:5924:44
7:58
+0:02
20K
12.43 mi12:32:401:41:198:0926:55
8:40
+0:42
Half
13.11 mi12:38:181:46:578:095:38
8:15
-0:25
25K
15.53 mi12:59:002:07:398:1320:42
8:32
+0:17
30K
18.64 mi13:25:522:34:318:1726:52
8:39
+0:07
20M
20.00 mi13:37:502:46:298:1911:58
8:48
+0:09
21M
21.00 mi13:47:302:56:098:239:40
9:40
+0:52
35K
21.75 mi13:53:383:02:178:236:08
8:12
-1:28
23M
23.00 mi14:04:183:12:578:2310:40
8:31
+0:19
24M
24.00 mi14:12:303:21:098:238:12
8:12
-0:19
40K
24.85 mi14:19:343:28:138:237:04
8:16
+0:04
25.2M
25.20 mi14:22:473:31:268:233:13
9:20
+1:04
Finish
26.22 mi14:30:543:39:338:238:07
7:58
-1:22

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

7:56 /mi

Average Pace

8:23 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

57:29

26% of race

Time at Steady Pace

52:04

24% of race

Time at Slower Pace

1:50:00

50% of race

Average Pace: 8:22 /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 mi11:16:2325:028:0325:02
8:03
#14422
10K
6.21 mi11:41:0149:408:0024:38
7:56
#14352
15K
9.32 mi12:05:451:14:247:5924:44
7:58
#14245
20K
12.43 mi12:32:401:41:198:0926:55
8:40
#15274
Half
13.11 mi12:38:181:46:578:095:38
8:15
#15301
25K
15.53 mi12:59:002:07:398:1320:42
8:32
#15477
30K
18.64 mi13:25:522:34:318:1726:52
8:39
#15391
20M
20.00 mi13:37:502:46:298:1911:58
8:48
#15404
21M
21.00 mi13:47:302:56:098:239:40
9:40
#15442
35K
21.75 mi13:53:383:02:178:236:08
8:12
#15360
23M
23.00 mi14:04:183:12:578:2310:40
8:31
#15217
24M
24.00 mi14:12:303:21:098:238:12
8:12
#15095
40K
24.85 mi14:19:343:28:138:237:04
8:16
#14957
25.2M
25.20 mi14:22:473:31:268:233:13
9:20
#14937
Finish
26.22 mi14:30:543:39:338:238:07
7:58
#14829
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi144224286428614084(Top 53%)4134(Top 36%)4134(Top 220%)
10K6.21 mi3.10 mi14352+704258+284258+2814248(Top 54%)4209(Top 37%)4209(Top 224%)
15K9.32 mi3.11 mi14245+1074205+534205+5314084(Top 53%)4134(Top 36%)4134(Top 220%)
20K12.43 mi3.11 mi15274-10294854-6494854-64917901(Top 67%)6453(Top 56%)6453(Top 344%)
Half13.11 mi0.68 mi15301-274878-244878-2416215(Top 61%)5416(Top 47%)5416(Top 288%)
25K15.53 mi2.42 mi15477-1765014-1365014-13616421(Top 62%)5676(Top 50%)5676(Top 302%)
30K18.64 mi3.11 mi15391+865011+35011+315212(Top 57%)5066(Top 44%)5066(Top 270%)
20M20.00 mi1.36 mi15404-135032-215032-2115465(Top 58%)5251(Top 46%)5251(Top 280%)
21M21.00 mi1.00 mi15442-385085-535085-5316714(Top 63%)6017(Top 53%)6017(Top 320%)
35K21.75 mi0.75 mi15360+825043+425043+4213486(Top 51%)4285(Top 38%)4285(Top 228%)
23M23.00 mi1.25 mi15217+1434976+674976+6713383(Top 50%)4287(Top 38%)4287(Top 228%)
24M24.00 mi1.00 mi15095+1224911+654911+6512647(Top 48%)3947(Top 35%)3947(Top 210%)
40K24.85 mi0.85 mi14957+1384851+604851+6011845(Top 44%)3592(Top 31%)3592(Top 191%)
25.2M25.20 mi0.35 mi14937+204849+24849+214380(Top 54%)4950(Top 43%)4950(Top 264%)
Finish26.22 mi1.02 mi14829+1084807+424807+4211916(Top 45%)3673(Top 32%)3673(Top 196%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

14084

Females

4134

F40-44

4134

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

14248

Females

4209

F40-44

4209

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

14084

Females

4134

F40-44

4134

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

17901

Females

6453

F40-44

6453

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

16215

Females

5416

F40-44

5416

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

16421

Females

5676

F40-44

5676

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

15212

Females

5066

F40-44

5066

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

15465

Females

5251

F40-44

5251

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

16714

Females

6017

F40-44

6017

21M→35K

21.0 - 21.8 mi

Top 51%
×7story building
+17ft-86ft

Overall

13486

Females

4285

F40-44

4285

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

13383

Females

4287

F40-44

4287

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

12647

Females

3947

F40-44

3947

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11845

Females

3592

F40-44

3592

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

14380

Females

4950

F40-44

4950

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

11916

Females

3673

F40-44

3673

Passing Analysis

Category:
Athletes Passed
1795
Passed By
2202
Net Change
-407
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14422
5K → 10K330260+70#14422#14352
10K → 15K233126+107#14352#14245
15K → 20K351064-1029#14245#15274
20K → Half2754-27#15274#15301
Half → 25K85261-176#15301#15477
25K → 30K224138+86#15477#15391
30K → 20M8093-13#15391#15404
20M → 21M72110-38#15404#15442
21M → 35K9311+82#15442#15360
35K → 23M17330+143#15360#15217
23M → 24M1264+122#15217#15095
24M → 40K1468+138#15095#14957
40K → 25.2M3919+20#14957#14937
25.2M → Finish13224+108#14937#14829
TOTALS17952202-407
📊

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