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BOSTON MARATHON 2023

Jessica Loomer

Bib: P155•F

CO

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
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
9:04/mi
28:11
↑ 97↓ 3451.5%
10K· 6.21 mi
9:06/mi
56:27
↑ 79↓ 1380.4%
15K· 9.32 mi
9:50/mi
1:27:00
↑ 67↓ 78
20K· 12.43 mi
9:49/mi
1:57:31
↑ 106↓ 860.1%
Half· 13.11 mi
9:20/mi
2:03:53
↑ 19↓ 370.5%
25K· 15.53 mi
10:14/mi
2:28:43
↑ 66↓ 880.2%
30K· 18.64 mi
10:14/mi
3:00:32
↑ 181↓ 1480.2%
20M
11:00/mi
3:15:29
↑ 64↓ 500.2%
21M
11:34/mi
3:27:03
↑ 106↓ 241.6%
35K· 21.75 mi
10:58/mi
3:35:15
↑ 17↓ 861.7%
23M
10:02/mi
3:47:49
↑ 23↓ 630.6%
24M
10:06/mi
3:57:55
↓ 821.3%
40K· 24.85 mi
10:35/mi
4:06:58
↓ 200.3%
25.2M
11:48/mi
4:11:02
↑ 13↓ 160.2%
Finish· 26.22 mi
9:51/mi
4:21:04
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:53
Pace9:27 /mi
2nd Half
Distance13.11 mi
Time2:17:11
Pace10:28 /mi
📊Positive Split: 10.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:1228:119:0428:11
9:04
-
10K
6.21 mi10:46:2856:279:0528:16
9:06
+0:02
15K
9.32 mi11:17:011:27:009:2030:33
9:50
+0:44
20K
12.43 mi11:47:321:57:319:2730:31
9:49
-0:01
Half
13.11 mi11:53:542:03:539:276:22
9:20
-0:29
25K
15.53 mi12:18:442:28:439:3424:50
10:14
+0:54
30K
18.64 mi12:50:333:00:329:4131:49
10:14
0:00
20M
20.00 mi13:05:303:15:299:4614:57
11:00
+0:46
21M
21.00 mi13:17:043:27:039:5211:34
11:34
+0:34
35K
21.75 mi13:25:163:35:159:548:12
10:58
-0:36
23M
23.00 mi13:37:503:47:499:5412:34
10:02
-0:56
24M
24.00 mi13:47:563:57:559:5510:06
10:06
+0:04
40K
24.85 mi13:56:594:06:589:569:03
10:35
+0:29
25.2M
25.20 mi14:01:034:11:029:584:04
11:48
+1:13
Finish
26.22 mi14:11:054:21:049:5810:02
9:51
-1:57

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

9:04 /mi

Average Pace

9:58 /mi

Slowest Pace

11:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:02:49

24% of race

Time at Steady Pace

2:30:25

58% of race

Time at Slower Pace

47:50

18% of race

Average Pace: 9:57 /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 mi10:18:1228:119:0428:11
9:04
#20761
10K
6.21 mi10:46:2856:279:0528:16
9:06
#20999
15K
9.32 mi11:17:011:27:009:2030:33
9:50
#21791
20K
12.43 mi11:47:321:57:319:2730:31
9:49
#21972
Half
13.11 mi11:53:542:03:539:276:22
9:20
#21939
25K
15.53 mi12:18:442:28:439:3424:50
10:14
#22104
30K
18.64 mi12:50:333:00:329:4131:49
10:14
#22016
20M
20.00 mi13:05:303:15:299:4614:57
11:00
#22092
21M
21.00 mi13:17:043:27:039:5211:34
11:34
#22095
35K
21.75 mi13:25:163:35:159:548:12
10:58
#22119
23M
23.00 mi13:37:503:47:499:5412:34
10:02
#22022
24M
24.00 mi13:47:563:57:559:5510:06
10:06
#21975
40K
24.85 mi13:56:594:06:589:569:03
10:35
#21960
25.2M
25.20 mi14:01:034:11:029:584:04
11:48
#21957
Finish
26.22 mi14:11:054:21:049:5810:02
9:51
#21939
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi207618253825323134(Top 87%)9418(Top 82%)9418(Top 193%)
10K6.21 mi3.10 mi20999-2388324-718324-7121268(Top 80%)8427(Top 74%)8427(Top 173%)
15K9.32 mi3.11 mi21791-7928725-4018725-40123134(Top 87%)9418(Top 82%)9418(Top 193%)
20K12.43 mi3.11 mi21972-1818820-958820-9522463(Top 84%)9062(Top 79%)9062(Top 186%)
Half13.11 mi0.68 mi21939+338795+258795+2521655(Top 81%)8607(Top 75%)8607(Top 176%)
25K15.53 mi2.42 mi22104-1658886-918886-9122709(Top 85%)9223(Top 81%)9223(Top 189%)
30K18.64 mi3.11 mi22016+888843+438843+4321638(Top 81%)8706(Top 76%)8706(Top 178%)
20M20.00 mi1.36 mi22092-768899-568899-5622716(Top 85%)9371(Top 82%)9371(Top 192%)
21M21.00 mi1.00 mi22095-38912-138912-1321997(Top 83%)8987(Top 79%)8987(Top 184%)
35K21.75 mi0.75 mi22119-248932-208932-2023241(Top 87%)9718(Top 85%)9718(Top 199%)
23M23.00 mi1.25 mi22022+978883+498883+4920115(Top 76%)8028(Top 70%)8028(Top 164%)
24M24.00 mi1.00 mi21975+478864+198864+1921083(Top 79%)8600(Top 75%)8600(Top 176%)
40K24.85 mi0.85 mi21960+158869-58869-521430(Top 80%)8859(Top 78%)8859(Top 181%)
25.2M25.20 mi0.35 mi21957+38875-68875-622148(Top 83%)9207(Top 81%)9207(Top 189%)
Finish26.22 mi1.02 mi21939+188872+38872+321315(Top 80%)8726(Top 76%)8726(Top 179%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

23134

Females

9418

F18-39

9418

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

21268

Females

8427

F18-39

8427

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

23134

Females

9418

F18-39

9418

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

22463

Females

9062

F18-39

9062

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

21655

Females

8607

F18-39

8607

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

22709

Females

9223

F18-39

9223

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

21638

Females

8706

F18-39

8706

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

22716

Females

9371

F18-39

9371

20M→21M

20.0 - 21.0 mi

Top 83%
×8story building
+106ft-24ft

Overall

21997

Females

8987

F18-39

8987

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

23241

Females

9718

F18-39

9718

35K→23M

21.8 - 23.0 mi

Top 76%
×5story building
+23ft-63ft

Overall

20115

Females

8028

F18-39

8028

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

21083

Females

8600

F18-39

8600

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21430

Females

8859

F18-39

8859

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22148

Females

9207

F18-39

9207

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

21315

Females

8726

F18-39

8726

Passing Analysis

Category:
Athletes Passed
946
Passed By
2124
Net Change
-1178
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20761
5K → 10K189427-238#20761#20999
10K → 15K17809-792#20999#21791
15K → 20K71252-181#21791#21972
20K → Half429+33#21972#21939
Half → 25K52217-165#21939#22104
25K → 30K18294+88#22104#22016
30K → 20M42118-76#22016#22092
20M → 21M5356-3#22092#22095
21M → 35K2145-24#22095#22119
35K → 23M10912+97#22119#22022
23M → 24M6316+47#22022#21975
24M → 40K4328+15#21975#21960
40K → 25.2M1916+3#21960#21957
25.2M → Finish4325+18#21957#21939
TOTALS9462124-1178
📊

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