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BOSTON MARATHON 2023

Julie Tower

Bib: 12970•F

CT

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 22%
Gender (Female)
#0 / 11423
Top 5%
Division (F18-39)
#0 / 4884
Top 10%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:26
Rank: #7630
Start → 5K
22:26 | 7:13/mi
10K· 6.21 mi
44:38
Rank: #7652 (-22)
5K → 10K
22:12 | 7:09/mi
15K· 9.32 mi
1:06:44
Rank: #7487 (+165)
10K → 15K
22:06 | 7:07/mi
20K· 12.43 mi
1:28:56
Rank: #7260 (+227)
15K → 20K
22:12 | 7:09/mi
Half· 13.11 mi
1:33:51
Rank: #7283 (-23)
20K → Half
4:55 | 7:12/mi
25K· 15.53 mi
1:51:13
Rank: #7120 (+163)
Half → 25K
17:22 | 7:10/mi
30K· 18.64 mi
2:13:35
Rank: #6784 (+336)
25K → 30K
22:22 | 7:12/mi
20M
2:23:19
Rank: #6622 (+162)
30K → 20M
9:44 | 7:10/mi
21M
2:31:03
Rank: #6542 (+80)
20M → 21M
7:44 | 7:44/mi
35K· 21.75 mi
2:36:14
Rank: #6451 (+91)
21M → 35K
5:11 | 6:56/mi
23M
2:45:12
Rank: #6300 (+151)
35K → 23M
8:58 | 7:10/mi
24M
2:52:12
Rank: #6159 (+141)
23M → 24M
7:00 | 7:00/mi
40K· 24.85 mi
2:58:13
Rank: #6051 (+108)
24M → 40K
6:01 | 7:02/mi
25.2M
3:00:54
Rank: #6019 (+32)
40K → 25.2M
2:41 | 7:47/mi
Finish· 26.22 mi
3:08:09
Rank: #5980 (+39)
25.2M → Finish
7:15 | 7:07/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:33:51
Pace7:10 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:34:18
Pace7:12 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:5422:267:1322:26
7:13
-
10K
6.21 mi11:12:0644:387:1122:12
7:09
-0:04
15K
9.32 mi11:34:121:06:447:1022:06
7:07
-0:02
20K
12.43 mi11:56:241:28:567:0922:12
7:09
+0:02
Half
13.11 mi12:01:191:33:517:104:55
7:12
+0:03
25K
15.53 mi12:18:411:51:137:1017:22
7:10
-0:02
30K
18.64 mi12:41:032:13:357:1022:22
7:12
+0:02
20M
20.00 mi12:50:472:23:197:109:44
7:10
-0:02
21M
21.00 mi12:58:312:31:037:127:44
7:44
+0:34
35K
21.75 mi13:03:422:36:147:115:11
6:56
-0:48
23M
23.00 mi13:12:402:45:127:118:58
7:10
+0:14
24M
24.00 mi13:19:402:52:127:117:00
7:00
-0:10
40K
24.85 mi13:25:412:58:137:106:01
7:02
+0:02
25.2M
25.20 mi13:28:223:00:547:112:41
7:47
+0:45
Finish
26.22 mi13:35:373:08:097:117:15
7:07
-0:40

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

6:56 /mi

Average Pace

7:11 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:57:44

94% of race

Time at Steady Pace

10:25

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:11 /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 mi10:49:5422:267:1322:26
7:13
#7630
10K
6.21 mi11:12:0644:387:1122:12
7:09
#7652
15K
9.32 mi11:34:121:06:447:1022:06
7:07
#7487
20K
12.43 mi11:56:241:28:567:0922:12
7:09
#7260
Half
13.11 mi12:01:191:33:517:104:55
7:12
#7283
25K
15.53 mi12:18:411:51:137:1017:22
7:10
#7120
30K
18.64 mi12:41:032:13:357:1022:22
7:12
#6784
20M
20.00 mi12:50:472:23:197:109:44
7:10
#6622
21M
21.00 mi12:58:312:31:037:127:44
7:44
#6542
35K
21.75 mi13:03:422:36:147:115:11
6:56
#6451
23M
23.00 mi13:12:402:45:127:118:58
7:10
#6300
24M
24.00 mi13:19:402:52:127:117:00
7:00
#6159
40K
24.85 mi13:25:412:58:137:106:01
7:02
#6051
25.2M
25.20 mi13:28:223:00:547:112:41
7:47
#6019
Finish
26.22 mi13:35:373:08:097:117:15
7:07
#5980
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi76308818817230(Top 27%)813(Top 7%)813(Top 17%)
10K6.21 mi3.10 mi7652-22901-20901-207742(Top 29%)966(Top 8%)966(Top 20%)
15K9.32 mi3.11 mi7487+165864+37864+377230(Top 27%)813(Top 7%)813(Top 17%)
20K12.43 mi3.11 mi7260+227815+49815+496795(Top 26%)728(Top 6%)728(Top 15%)
Half13.11 mi0.68 mi7283-23822-7822-77936(Top 30%)1045(Top 9%)1045(Top 21%)
25K15.53 mi2.42 mi7120+163789+33789+336467(Top 24%)684(Top 6%)684(Top 14%)
30K18.64 mi3.11 mi6784+336723+66723+665506(Top 21%)505(Top 4%)505(Top 10%)
20M20.00 mi1.36 mi6622+162697+26697+264945(Top 19%)449(Top 4%)449(Top 9%)
21M21.00 mi1.00 mi6542+80690+7690+75835(Top 22%)755(Top 7%)755(Top 15%)
35K21.75 mi0.75 mi6451+91674+16674+164992(Top 19%)507(Top 4%)507(Top 10%)
23M23.00 mi1.25 mi6300+151645+29645+294629(Top 17%)449(Top 4%)449(Top 9%)
24M24.00 mi1.00 mi6159+141623+22623+224706(Top 18%)494(Top 4%)494(Top 10%)
40K24.85 mi0.85 mi6051+108607+16607+164076(Top 15%)429(Top 4%)429(Top 9%)
25.2M25.20 mi0.35 mi6019+32603+4603+45337(Top 20%)829(Top 7%)829(Top 17%)
Finish26.22 mi1.02 mi5980+39608-5608-55917(Top 22%)1036(Top 9%)1036(Top 21%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

7230

Females

813

F18-39

813

5K→10K

3.1 - 6.2 mi

Top 29%
×5stories
+79ft-138ft

Overall

7742

Females

966

F18-39

966

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

7230

Females

813

F18-39

813

15K→20K

9.3 - 12.4 mi

Top 26%
×5stories
+106ft-86ft

Overall

6795

Females

728

F18-39

728

20K→Half

12.4 - 13.1 mi

Top 30%
×2stories
+19ft-37ft

Overall

7936

Females

1045

F18-39

1045

Half→25K

13.1 - 15.5 mi

Top 24%
×4stories
+66ft-88ft

Overall

6467

Females

684

F18-39

684

25K→30K

15.5 - 18.6 mi

Top 21%
×9stories
+181ft-148ft

Overall

5506

Females

505

F18-39

505

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

4945

Females

449

F18-39

449

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

5835

Females

755

F18-39

755

21M→35K

21.0 - 21.8 mi

Top 19%
×7stories
+17ft-86ft

Overall

4992

Females

507

F18-39

507

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4629

Females

449

F18-39

449

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

4706

Females

494

F18-39

494

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

4076

Females

429

F18-39

429

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5337

Females

829

F18-39

829

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

5917

Females

1036

F18-39

1036

Passing Analysis

Category:
Athletes Passed
2117
Passed By
467
Net Change
+1650
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7630
5K → 10K207229-22#7630#7652
10K → 15K22661+165#7652#7487
15K → 20K25124+227#7487#7260
20K → Half1235-23#7260#7283
Half → 25K17815+163#7283#7120
25K → 30K34812+336#7120#6784
30K → 20M1686+162#6784#6622
20M → 21M10020+80#6622#6542
21M → 35K976+91#6542#6451
35K → 23M1576+151#6451#6300
23M → 24M1443+141#6300#6159
24M → 40K1135+108#6159#6051
40K → 25.2M397+32#6051#6019
25.2M → Finish7738+39#6019#5980
TOTALS2117467+1650
📊

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