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BOSTON MARATHON 2023

Julia Heiges

Bib: 16347•F

MD

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 49%
Gender (Female)
#0 / 11423
Top 33%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:46
Rank: #16098
Start → 5K
25:46 | 8:18/mi
10K· 6.21 mi
51:16
Rank: #16182 (-84)
5K → 10K
25:30 | 8:12/mi
15K· 9.32 mi
1:16:21
Rank: #15755 (+427)
10K → 15K
25:05 | 8:04/mi
20K· 12.43 mi
1:41:25
Rank: #15323 (+432)
15K → 20K
25:04 | 8:04/mi
Half· 13.11 mi
1:46:50
Rank: #15246 (+77)
20K → Half
5:25 | 7:56/mi
25K· 15.53 mi
2:06:17
Rank: #14838 (+408)
Half → 25K
19:27 | 8:01/mi
30K· 18.64 mi
2:31:22
Rank: #14246 (+592)
25K → 30K
25:05 | 8:04/mi
20M
2:42:18
Rank: #13954 (+292)
30K → 20M
10:56 | 8:03/mi
21M
2:50:32
Rank: #13616 (+338)
20M → 21M
8:14 | 8:14/mi
35K· 21.75 mi
2:56:40
Rank: #13600 (+16)
21M → 35K
6:08 | 8:12/mi
23M
3:07:00
Rank: #13442 (+158)
35K → 23M
10:20 | 8:15/mi
24M
3:15:07
Rank: #13336 (+106)
23M → 24M
8:07 | 8:07/mi
40K· 24.85 mi
3:22:07
Rank: #13240 (+96)
24M → 40K
7:00 | 8:11/mi
25.2M
3:25:06
Rank: #13172 (+68)
40K → 25.2M
2:59 | 8:39/mi
Finish· 26.22 mi
3:33:04
Rank: #13067 (+105)
25.2M → Finish
7:58 | 7:49/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:46:50
Pace8:09 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:46:14
Pace8:06 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0325:468:1825:46
8:18
-
10K
6.21 mi11:41:3351:168:1525:30
8:12
-0:06
15K
9.32 mi12:06:381:16:218:1125:05
8:04
-0:08
20K
12.43 mi12:31:421:41:258:1025:04
8:04
0:00
Half
13.11 mi12:37:071:46:508:095:25
7:56
-0:08
25K
15.53 mi12:56:342:06:178:0819:27
8:01
+0:05
30K
18.64 mi13:21:392:31:228:0725:05
8:04
+0:03
20M
20.00 mi13:32:352:42:188:0710:56
8:03
-0:01
21M
21.00 mi13:40:492:50:328:078:14
8:14
+0:11
35K
21.75 mi13:46:572:56:408:076:08
8:12
-0:02
23M
23.00 mi13:57:173:07:008:0810:20
8:15
+0:03
24M
24.00 mi14:05:243:15:078:088:07
8:07
-0:08
40K
24.85 mi14:12:243:22:078:087:00
8:11
+0:04
25.2M
25.20 mi14:15:233:25:068:082:59
8:39
+0:28
Finish
26.22 mi14:23:213:33:048:087:58
7:49
-0:50

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

7:49 /mi

Average Pace

8:08 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:30:05

99% of race

Time at Steady Pace

2:59

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:08 /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 mi11:16:0325:468:1825:46
8:18
#16098
10K
6.21 mi11:41:3351:168:1525:30
8:12
#16182
15K
9.32 mi12:06:381:16:218:1125:05
8:04
#15755
20K
12.43 mi12:31:421:41:258:1025:04
8:04
#15323
Half
13.11 mi12:37:071:46:508:095:25
7:56
#15246
25K
15.53 mi12:56:342:06:178:0819:27
8:01
#14838
30K
18.64 mi13:21:392:31:228:0725:05
8:04
#14246
20M
20.00 mi13:32:352:42:188:0710:56
8:03
#13954
21M
21.00 mi13:40:492:50:328:078:14
8:14
#13616
35K
21.75 mi13:46:572:56:408:076:08
8:12
#13600
23M
23.00 mi13:57:173:07:008:0810:20
8:15
#13442
24M
24.00 mi14:05:243:15:078:088:07
8:07
#13336
40K
24.85 mi14:12:243:22:078:087:00
8:11
#13240
25.2M
25.20 mi14:15:233:25:068:082:59
8:39
#13172
Finish
26.22 mi14:23:213:33:048:087:58
7:49
#13067
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi160985342534214989(Top 56%)4670(Top 41%)4670(Top 96%)
10K6.21 mi3.10 mi16182-845384-425384-4216311(Top 61%)5457(Top 48%)5457(Top 112%)
15K9.32 mi3.11 mi15755+4275126+2585126+25814989(Top 56%)4670(Top 41%)4670(Top 96%)
20K12.43 mi3.11 mi15323+4324882+2444882+24414000(Top 53%)4107(Top 36%)4107(Top 84%)
Half13.11 mi0.68 mi15246+774839+434839+4313916(Top 52%)4025(Top 35%)4025(Top 82%)
25K15.53 mi2.42 mi14838+4084609+2304609+23012938(Top 49%)3595(Top 31%)3595(Top 74%)
30K18.64 mi3.11 mi14246+5924293+3164293+31611487(Top 43%)2901(Top 25%)2901(Top 59%)
20M20.00 mi1.36 mi13954+2924133+1604133+16010644(Top 40%)2570(Top 22%)2570(Top 53%)
21M21.00 mi1.00 mi13616+3383943+1903943+1908843(Top 33%)1870(Top 16%)1870(Top 38%)
35K21.75 mi0.75 mi13600+163948-53948-513432(Top 50%)4231(Top 37%)4231(Top 87%)
23M23.00 mi1.25 mi13442+1583883+653883+6511575(Top 43%)3292(Top 29%)3292(Top 67%)
24M24.00 mi1.00 mi13336+1063839+443839+4412073(Top 45%)3630(Top 32%)3630(Top 74%)
40K24.85 mi0.85 mi13240+963801+383801+3811306(Top 42%)3315(Top 29%)3315(Top 68%)
25.2M25.20 mi0.35 mi13172+683780+213780+2110548(Top 40%)2974(Top 26%)2974(Top 61%)
Finish26.22 mi1.02 mi13067+1053738+423738+4210842(Top 41%)3116(Top 27%)3116(Top 64%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21stories
+97ft-345ft

Overall

14989

Females

4670

F18-39

4670

5K→10K

3.1 - 6.2 mi

Top 61%
×5stories
+79ft-138ft

Overall

16311

Females

5457

F18-39

5457

10K→15K

6.2 - 9.3 mi

Top 56%
×3stories
+67ft-78ft

Overall

14989

Females

4670

F18-39

4670

15K→20K

9.3 - 12.4 mi

Top 53%
×5stories
+106ft-86ft

Overall

14000

Females

4107

F18-39

4107

20K→Half

12.4 - 13.1 mi

Top 52%
×2stories
+19ft-37ft

Overall

13916

Females

4025

F18-39

4025

Half→25K

13.1 - 15.5 mi

Top 49%
×4stories
+66ft-88ft

Overall

12938

Females

3595

F18-39

3595

25K→30K

15.5 - 18.6 mi

Top 43%
×9stories
+181ft-148ft

Overall

11487

Females

2901

F18-39

2901

30K→20M

18.6 - 20.0 mi

Top 40%
×5stories
+64ft-50ft

Overall

10644

Females

2570

F18-39

2570

20M→21M

20.0 - 21.0 mi

Top 33%
×8stories
+106ft-24ft

Overall

8843

Females

1870

F18-39

1870

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

13432

Females

4231

F18-39

4231

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

11575

Females

3292

F18-39

3292

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

12073

Females

3630

F18-39

3630

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11306

Females

3315

F18-39

3315

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

10548

Females

2974

F18-39

2974

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

10842

Females

3116

F18-39

3116

Passing Analysis

Category:
Athletes Passed
3604
Passed By
573
Net Change
+3031
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16098
5K → 10K261345-84#16098#16182
10K → 15K48053+427#16182#15755
15K → 20K45725+432#15755#15323
20K → Half825+77#15323#15246
Half → 25K4168+408#15246#14838
25K → 30K5953+592#14838#14246
30K → 20M2964+292#14246#13954
20M → 21M3402+338#13954#13616
21M → 35K6145+16#13616#13600
35K → 23M17820+158#13600#13442
23M → 24M12721+106#13442#13336
24M → 40K11418+96#13336#13240
40K → 25.2M757+68#13240#13172
25.2M → Finish12217+105#13172#13067
TOTALS3604573+3031
📊

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