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BOSTON MARATHON 2023

Lauren Chanatry

Bib: 13918•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 28%
Gender (Female)
#0 / 11423
Top 9%
Division (F18-39)
#0 / 4884
Top 17%
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
7:35/mi
23:34
↑ 97↓ 3451.5%
10K· 6.21 mi
7:23/mi
46:31
↑ 79↓ 1380.4%
15K· 9.32 mi
7:18/mi
1:09:13
↑ 67↓ 78
20K· 12.43 mi
7:18/mi
1:31:55
↑ 106↓ 860.1%
Half· 13.11 mi
7:14/mi
1:36:51
↑ 19↓ 370.5%
25K· 15.53 mi
7:20/mi
1:54:37
↑ 66↓ 880.2%
30K· 18.64 mi
7:32/mi
2:18:00
↑ 181↓ 1480.2%
20M
7:36/mi
2:28:20
↑ 64↓ 500.2%
21M
7:36/mi
2:35:56
↑ 106↓ 241.6%
35K· 21.75 mi
7:14/mi
2:41:21
↑ 17↓ 861.7%
23M
7:27/mi
2:50:41
↑ 23↓ 630.6%
24M
7:14/mi
2:57:55
↓ 821.3%
40K· 24.85 mi
7:13/mi
3:04:05
↓ 200.3%
25.2M
7:41/mi
3:06:44
↑ 13↓ 160.2%
Finish· 26.22 mi
6:54/mi
3:13:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:36:51
Pace7:23 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:36:55
Pace7:24 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:2523:347:3523:34
7:35
-
10K
6.21 mi11:15:2246:317:2922:57
7:23
-0:12
15K
9.32 mi11:38:041:09:137:2622:42
7:18
-0:05
20K
12.43 mi12:00:461:31:557:2422:42
7:18
0:00
Half
13.11 mi12:05:421:36:517:234:56
7:14
-0:04
25K
15.53 mi12:23:281:54:377:2317:46
7:20
+0:06
30K
18.64 mi12:46:512:18:007:2423:23
7:32
+0:12
20M
20.00 mi12:57:112:28:207:2510:20
7:36
+0:04
21M
21.00 mi13:04:472:35:567:267:36
7:36
0:00
35K
21.75 mi13:10:122:41:217:255:25
7:14
-0:22
23M
23.00 mi13:19:322:50:417:259:20
7:27
+0:13
24M
24.00 mi13:26:462:57:557:257:14
7:14
-0:13
40K
24.85 mi13:32:563:04:057:246:10
7:13
-0:01
25.2M
25.20 mi13:35:353:06:447:252:39
7:41
+0:28
Finish
26.22 mi13:42:373:13:467:247:02
6:54
-0:47

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

6:54 /mi

Average Pace

7:24 /mi

Slowest Pace

7:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:53:11

89% of race

Time at Steady Pace

20:35

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:23 /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 mi10:52:2523:347:3523:34
7:35
#10404
10K
6.21 mi11:15:2246:317:2922:57
7:23
#9893
15K
9.32 mi11:38:041:09:137:2622:42
7:18
#9408
20K
12.43 mi12:00:461:31:557:2422:42
7:18
#8977
Half
13.11 mi12:05:421:36:517:234:56
7:14
#8915
25K
15.53 mi12:23:281:54:377:2317:46
7:20
#8668
30K
18.64 mi12:46:512:18:007:2423:23
7:32
#8381
20M
20.00 mi12:57:112:28:207:2510:20
7:36
#8287
21M
21.00 mi13:04:472:35:567:267:36
7:36
#8076
35K
21.75 mi13:10:122:41:217:255:25
7:14
#8007
23M
23.00 mi13:19:322:50:417:259:20
7:27
#7852
24M
24.00 mi13:26:462:57:557:257:14
7:14
#7728
40K
24.85 mi13:32:563:04:057:246:10
7:13
#7587
25.2M
25.20 mi13:35:353:06:447:252:39
7:41
#7538
Finish
26.22 mi13:42:373:13:467:247:02
6:54
#7376
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 mi10404203420348622(Top 32%)1281(Top 11%)1281(Top 26%)
10K6.21 mi3.10 mi9893+5111790+2441790+2449503(Top 36%)1620(Top 14%)1620(Top 33%)
15K9.32 mi3.11 mi9408+4851581+2091581+2098622(Top 32%)1281(Top 11%)1281(Top 26%)
20K12.43 mi3.11 mi8977+4311432+1491432+1497842(Top 29%)1055(Top 9%)1055(Top 22%)
Half13.11 mi0.68 mi8915+621411+211411+218138(Top 31%)1144(Top 10%)1144(Top 23%)
25K15.53 mi2.42 mi8668+2471321+901321+907472(Top 28%)999(Top 9%)999(Top 20%)
30K18.64 mi3.11 mi8381+2871256+651256+657413(Top 28%)1075(Top 9%)1075(Top 22%)
20M20.00 mi1.36 mi8287+941247+91247+97481(Top 28%)1217(Top 11%)1217(Top 25%)
21M21.00 mi1.00 mi8076+2111177+701177+705136(Top 19%)571(Top 5%)571(Top 12%)
35K21.75 mi0.75 mi8007+691165+121165+126809(Top 26%)1027(Top 9%)1027(Top 21%)
23M23.00 mi1.25 mi7852+1551131+341131+346196(Top 23%)882(Top 8%)882(Top 18%)
24M24.00 mi1.00 mi7728+1241105+261105+265977(Top 22%)885(Top 8%)885(Top 18%)
40K24.85 mi0.85 mi7587+1411074+311074+314996(Top 19%)654(Top 6%)654(Top 13%)
25.2M25.20 mi0.35 mi7538+491067+71067+74886(Top 18%)693(Top 6%)693(Top 14%)
Finish26.22 mi1.02 mi7376+1621037+301037+304681(Top 18%)633(Top 6%)633(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21story building
+97ft-345ft

Overall

8622

Females

1281

F18-39

1281

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

9503

Females

1620

F18-39

1620

10K→15K

6.2 - 9.3 mi

Top 32%
×3story building
+67ft-78ft

Overall

8622

Females

1281

F18-39

1281

15K→20K

9.3 - 12.4 mi

Top 29%
×5story building
+106ft-86ft

Overall

7842

Females

1055

F18-39

1055

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8138

Females

1144

F18-39

1144

Half→25K

13.1 - 15.5 mi

Top 28%
×4story building
+66ft-88ft

Overall

7472

Females

999

F18-39

999

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

7413

Females

1075

F18-39

1075

30K→20M

18.6 - 20.0 mi

Top 28%
×5story building
+64ft-50ft

Overall

7481

Females

1217

F18-39

1217

20M→21M

20.0 - 21.0 mi

Top 19%
×8story building
+106ft-24ft

Overall

5136

Females

571

F18-39

571

21M→35K

21.0 - 21.8 mi

Top 26%
×7story building
+17ft-86ft

Overall

6809

Females

1027

F18-39

1027

35K→23M

21.8 - 23.0 mi

Top 23%
×5story building
+23ft-63ft

Overall

6196

Females

882

F18-39

882

23M→24M

23.0 - 24.0 mi

Top 22%
×6story building
+12ft-82ft

Overall

5977

Females

885

F18-39

885

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

4996

Females

654

F18-39

654

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

4886

Females

693

F18-39

693

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2story building
+22ft-21ft

Overall

4681

Females

633

F18-39

633

Passing Analysis

Category:
Athletes Passed
3322*
Passed By
294
Net Change
+3028
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10404
5K → 10K623*112+511#10404#9893
10K → 15K50924+485#9893#9408
15K → 20K4409+431#9408#8977
20K → Half697+62#8977#8915
Half → 25K26114+247#8915#8668
25K → 30K33346+287#8668#8381
30K → 20M11420+94#8381#8287
20M → 21M2176+211#8287#8076
21M → 35K8213+69#8076#8007
35K → 23M16813+155#8007#7852
23M → 24M13511+124#7852#7728
24M → 40K1476+141#7728#7587
40K → 25.2M556+49#7587#7538
25.2M → Finish1697+162#7538#7376
TOTALS3322*294+3028

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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