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BOSTON MARATHON 2023

Jennifer Northup

Bib: 17440•F

VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 46%
Gender (Female)
#0 / 11423
Top 28%
Masters (Masters Women)
#0 / 6539
Top 15%
Division (F40-44)
#0 / 1878
Top 29%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:05
Rank: #11947
Start → 5K
24:05 | 7:45/mi
10K· 6.21 mi
47:29
Rank: #11290 (+657)
5K → 10K
23:24 | 7:32/mi
15K· 9.32 mi
1:11:35
Rank: #11619 (-329)
10K → 15K
24:06 | 7:45/mi
20K· 12.43 mi
1:35:52
Rank: #11644 (-25)
15K → 20K
24:17 | 7:49/mi
Half· 13.11 mi
1:41:11
Rank: #11701 (-57)
20K → Half
5:19 | 7:48/mi
25K· 15.53 mi
2:00:24
Rank: #11734 (-33)
Half → 25K
19:13 | 7:56/mi
30K· 18.64 mi
2:25:44
Rank: #11768 (-34)
25K → 30K
25:20 | 8:09/mi
20M
2:36:53
Rank: #11748 (+20)
30K → 20M
11:09 | 8:12/mi
21M
2:45:32
Rank: #11718 (+30)
20M → 21M
8:39 | 8:39/mi
35K· 21.75 mi
2:51:27
Rank: #11704 (+14)
21M → 35K
5:55 | 7:55/mi
23M
3:01:53
Rank: #11717 (-13)
35K → 23M
10:26 | 8:20/mi
24M
3:10:13
Rank: #11799 (-82)
23M → 24M
8:20 | 8:20/mi
40K· 24.85 mi
3:17:33
Rank: #11870 (-71)
24M → 40K
7:20 | 8:35/mi
25.2M
3:21:04
Rank: #12021 (-151)
40K → 25.2M
3:31 | 10:12/mi
Finish· 26.22 mi
3:29:51
Rank: #12212 (-191)
25.2M → Finish
8:47 | 8:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:11
Pace7:43 /mi
2nd Half
Distance13.11 mi
Time1:48:40
Pace8:17 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:5524:057:4524:05
7:45
-
10K
6.21 mi11:38:1947:297:3923:24
7:32
-0:13
15K
9.32 mi12:02:251:11:357:4124:06
7:45
+0:13
20K
12.43 mi12:26:421:35:527:4324:17
7:49
+0:04
Half
13.11 mi12:32:011:41:117:435:19
7:48
-0:01
25K
15.53 mi12:51:142:00:247:4519:13
7:56
+0:08
30K
18.64 mi13:16:342:25:447:4925:20
8:09
+0:13
20M
20.00 mi13:27:432:36:537:5111:09
8:12
+0:03
21M
21.00 mi13:36:222:45:327:538:39
8:39
+0:27
35K
21.75 mi13:42:172:51:277:535:55
7:55
-0:44
23M
23.00 mi13:52:433:01:537:5410:26
8:20
+0:25
24M
24.00 mi14:01:033:10:137:568:20
8:20
0:00
40K
24.85 mi14:08:233:17:337:577:20
8:35
+0:15
25.2M
25.20 mi14:11:543:21:047:593:31
10:12
+1:37
Finish
26.22 mi14:20:413:29:518:018:47
8:37
-1:35

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

7:32 /mi

Average Pace

8:01 /mi

Slowest Pace

10:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:11

48% of race

Time at Steady Pace

1:20:23

38% of race

Time at Slower Pace

28:17

13% of race

Average Pace: 8:00 /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 mi11:14:5524:057:4524:05
7:45
#11947
10K
6.21 mi11:38:1947:297:3923:24
7:32
#11290
15K
9.32 mi12:02:251:11:357:4124:06
7:45
#11619
20K
12.43 mi12:26:421:35:527:4324:17
7:49
#11644
Half
13.11 mi12:32:011:41:117:435:19
7:48
#11701
25K
15.53 mi12:51:142:00:247:4519:13
7:56
#11734
30K
18.64 mi13:16:342:25:447:4925:20
8:09
#11768
20M
20.00 mi13:27:432:36:537:5111:09
8:12
#11748
21M
21.00 mi13:36:222:45:327:538:39
8:39
#11718
35K
21.75 mi13:42:172:51:277:535:55
7:55
#11704
23M
23.00 mi13:52:433:01:537:5410:26
8:20
#11717
24M
24.00 mi14:01:033:10:137:568:20
8:20
#11799
40K
24.85 mi14:08:233:17:337:577:20
8:35
#11870
25.2M
25.20 mi14:11:543:21:047:593:31
10:12
#12021
Finish
26.22 mi14:20:413:29:518:018:47
8:37
#12212
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi119472840284012377(Top 46%)3119(Top 27%)3119(Top 166%)
10K6.21 mi3.10 mi11290+6572489+3512489+35110738(Top 40%)2179(Top 19%)2179(Top 116%)
15K9.32 mi3.11 mi11619-3292675-1862675-18612377(Top 46%)3119(Top 27%)3119(Top 166%)
20K12.43 mi3.11 mi11644-252707-322707-3211896(Top 45%)2910(Top 25%)2910(Top 155%)
Half13.11 mi0.68 mi11701-572739-322739-3212718(Top 48%)3324(Top 29%)3324(Top 177%)
25K15.53 mi2.42 mi11734-332778-392778-3912123(Top 46%)3150(Top 28%)3150(Top 168%)
30K18.64 mi3.11 mi11768-342845-672845-6712036(Top 45%)3204(Top 28%)3204(Top 171%)
20M20.00 mi1.36 mi11748+202852-72852-711753(Top 44%)3138(Top 27%)3138(Top 167%)
21M21.00 mi1.00 mi11718+302854-22854-211380(Top 43%)3078(Top 27%)3078(Top 164%)
35K21.75 mi0.75 mi11704+142858-42858-411508(Top 43%)3148(Top 28%)3148(Top 168%)
23M23.00 mi1.25 mi11717-132888-302888-3012144(Top 46%)3594(Top 31%)3594(Top 191%)
24M24.00 mi1.00 mi11799-822952-642952-6413438(Top 50%)4348(Top 38%)4348(Top 232%)
40K24.85 mi0.85 mi11870-713019-673019-6713826(Top 52%)4639(Top 41%)4639(Top 247%)
25.2M25.20 mi0.35 mi12021-1513113-943113-9418116(Top 68%)6996(Top 61%)6996(Top 373%)
Finish26.22 mi1.02 mi12212-1913240-1273240-12716082(Top 60%)5854(Top 51%)5854(Top 312%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21stories
+97ft-345ft

Overall

12377

Females

3119

F40-44

3119

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

10738

Females

2179

F40-44

2179

10K→15K

6.2 - 9.3 mi

Top 46%
×3stories
+67ft-78ft

Overall

12377

Females

3119

F40-44

3119

15K→20K

9.3 - 12.4 mi

Top 45%
×5stories
+106ft-86ft

Overall

11896

Females

2910

F40-44

2910

20K→Half

12.4 - 13.1 mi

Top 48%
×2stories
+19ft-37ft

Overall

12718

Females

3324

F40-44

3324

Half→25K

13.1 - 15.5 mi

Top 46%
×4stories
+66ft-88ft

Overall

12123

Females

3150

F40-44

3150

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

12036

Females

3204

F40-44

3204

30K→20M

18.6 - 20.0 mi

Top 44%
×5stories
+64ft-50ft

Overall

11753

Females

3138

F40-44

3138

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

11380

Females

3078

F40-44

3078

21M→35K

21.0 - 21.8 mi

Top 43%
×7stories
+17ft-86ft

Overall

11508

Females

3148

F40-44

3148

35K→23M

21.8 - 23.0 mi

Top 46%
×5stories
+23ft-63ft

Overall

12144

Females

3594

F40-44

3594

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

13438

Females

4348

F40-44

4348

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13826

Females

4639

F40-44

4639

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

18116

Females

6996

F40-44

6996

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

16082

Females

5854

F40-44

5854

Passing Analysis

Category:
Athletes Passed
1780
Passed By
2045
Net Change
-265
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11947
5K → 10K75497+657#11947#11290
10K → 15K87416-329#11290#11619
15K → 20K151176-25#11619#11644
20K → Half1269-57#11644#11701
Half → 25K135168-33#11701#11734
25K → 30K169203-34#11734#11768
30K → 20M10686+20#11768#11748
20M → 21M10171+30#11748#11718
21M → 35K5743+14#11718#11704
35K → 23M8699-13#11704#11717
23M → 24M48130-82#11717#11799
24M → 40K42113-71#11799#11870
40K → 25.2M2153-151#11870#12021
25.2M → Finish30221-191#12021#12212
TOTALS17802045-265
📊

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