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BOSTON MARATHON 2023

Taylor Cosio

Bib: 17472•F

FL

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 27%
Gender (Female)
#0 / 11423
Top 9%
Division (F18-39)
#0 / 4884
Top 16%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:11
Rank: #12206
Start → 5K
24:11 | 7:47/mi
10K· 6.21 mi
47:06
Rank: #10744 (+1462)
5K → 10K
22:55 | 7:23/mi
15K· 9.32 mi
1:09:49
Rank: #9950 (+794)
10K → 15K
22:43 | 7:19/mi
20K· 12.43 mi
1:32:52
Rank: #9594 (+356)
15K → 20K
23:03 | 7:25/mi
Half· 13.11 mi
1:37:52
Rank: #9551 (+43)
20K → Half
5:00 | 7:20/mi
25K· 15.53 mi
1:56:02
Rank: #9390 (+161)
Half → 25K
18:10 | 7:30/mi
30K· 18.64 mi
2:19:02
Rank: #8814 (+576)
25K → 30K
23:00 | 7:24/mi
20M
2:28:57
Rank: #8538 (+276)
30K → 20M
9:55 | 7:18/mi
21M
2:36:34
Rank: #8308 (+230)
20M → 21M
7:37 | 7:37/mi
35K· 21.75 mi
2:41:50
Rank: #8180 (+128)
21M → 35K
5:16 | 7:02/mi
23M
2:50:54
Rank: #7922 (+258)
35K → 23M
9:04 | 7:14/mi
24M
2:57:49
Rank: #7689 (+233)
23M → 24M
6:55 | 6:55/mi
40K· 24.85 mi
3:03:47
Rank: #7495 (+194)
24M → 40K
5:58 | 6:59/mi
25.2M
3:06:20
Rank: #7425 (+70)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
3:13:04
Rank: #7179 (+246)
25.2M → Finish
6:44 | 6:36/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:37:52
Pace7:28 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:35:12
Pace7:16 /mi
📊Negative Split: 2.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:5724:117:4724:11
7:47
-
10K
6.21 mi11:37:5247:067:3522:55
7:23
-0:24
15K
9.32 mi12:00:351:09:497:2922:43
7:19
-0:04
20K
12.43 mi12:23:381:32:527:2823:03
7:25
+0:06
Half
13.11 mi12:28:381:37:527:285:00
7:20
-0:05
25K
15.53 mi12:46:481:56:027:2818:10
7:30
+0:10
30K
18.64 mi13:09:482:19:027:2823:00
7:24
-0:06
20M
20.00 mi13:19:432:28:577:279:55
7:18
-0:06
21M
21.00 mi13:27:202:36:347:277:37
7:37
+0:19
35K
21.75 mi13:32:362:41:507:265:16
7:02
-0:35
23M
23.00 mi13:41:402:50:547:269:04
7:14
+0:12
24M
24.00 mi13:48:352:57:497:256:55
6:55
-0:19
40K
24.85 mi13:54:333:03:477:245:58
6:59
+0:04
25.2M
25.20 mi13:57:063:06:207:242:33
7:24
+0:25
Finish
26.22 mi14:03:503:13:047:226:44
6:36
-0:48

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

6:36 /mi

Average Pace

7:22 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

33:57

18% of race

Time at Steady Pace

2:39:07

82% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:22 /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 mi11:14:5724:117:4724:11
7:47
#12206
10K
6.21 mi11:37:5247:067:3522:55
7:23
#10744
15K
9.32 mi12:00:351:09:497:2922:43
7:19
#9950
20K
12.43 mi12:23:381:32:527:2823:03
7:25
#9594
Half
13.11 mi12:28:381:37:527:285:00
7:20
#9551
25K
15.53 mi12:46:481:56:027:2818:10
7:30
#9390
30K
18.64 mi13:09:482:19:027:2823:00
7:24
#8814
20M
20.00 mi13:19:432:28:577:279:55
7:18
#8538
21M
21.00 mi13:27:202:36:347:277:37
7:37
#8308
35K
21.75 mi13:32:362:41:507:265:16
7:02
#8180
23M
23.00 mi13:41:402:50:547:269:04
7:14
#7922
24M
24.00 mi13:48:352:57:497:256:55
6:55
#7689
40K
24.85 mi13:54:333:03:477:245:58
6:59
#7495
25.2M
25.20 mi13:57:063:06:207:242:33
7:24
#7425
Finish
26.22 mi14:03:503:13:047:226:44
6:36
#7179
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi12206297429748674(Top 33%)1305(Top 11%)1305(Top 27%)
10K6.21 mi3.10 mi10744+14622195+7792195+7799433(Top 35%)1599(Top 14%)1599(Top 33%)
15K9.32 mi3.11 mi9950+7941804+3911804+3918674(Top 33%)1305(Top 11%)1305(Top 27%)
20K12.43 mi3.11 mi9594+3561664+1401664+1408673(Top 33%)1359(Top 12%)1359(Top 28%)
Half13.11 mi0.68 mi9551+431645+191645+198850(Top 33%)1400(Top 12%)1400(Top 29%)
25K15.53 mi2.42 mi9390+1611604+411604+418738(Top 33%)1439(Top 13%)1439(Top 29%)
30K18.64 mi3.11 mi8814+5761410+1941410+1946628(Top 25%)804(Top 7%)804(Top 16%)
20M20.00 mi1.36 mi8538+2761332+781332+785651(Top 21%)616(Top 5%)616(Top 13%)
21M21.00 mi1.00 mi8308+2301268+641268+645224(Top 20%)595(Top 5%)595(Top 12%)
35K21.75 mi0.75 mi8180+1281235+331235+335605(Top 21%)655(Top 6%)655(Top 13%)
23M23.00 mi1.25 mi7922+2581155+801155+805024(Top 19%)538(Top 5%)538(Top 11%)
24M24.00 mi1.00 mi7689+2331085+701085+704296(Top 16%)403(Top 4%)403(Top 8%)
40K24.85 mi0.85 mi7495+1941050+351050+353771(Top 14%)375(Top 3%)375(Top 8%)
25.2M25.20 mi0.35 mi7425+701037+131037+133493(Top 13%)356(Top 3%)356(Top 7%)
Finish26.22 mi1.02 mi7179+246977+60977+603051(Top 11%)298(Top 3%)298(Top 6%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

8674

Females

1305

F18-39

1305

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

9433

Females

1599

F18-39

1599

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

8674

Females

1305

F18-39

1305

15K→20K

9.3 - 12.4 mi

Top 33%
×5stories
+106ft-86ft

Overall

8673

Females

1359

F18-39

1359

20K→Half

12.4 - 13.1 mi

Top 33%
×2stories
+19ft-37ft

Overall

8850

Females

1400

F18-39

1400

Half→25K

13.1 - 15.5 mi

Top 33%
×4stories
+66ft-88ft

Overall

8738

Females

1439

F18-39

1439

25K→30K

15.5 - 18.6 mi

Top 25%
×9stories
+181ft-148ft

Overall

6628

Females

804

F18-39

804

30K→20M

18.6 - 20.0 mi

Top 21%
×5stories
+64ft-50ft

Overall

5651

Females

616

F18-39

616

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5224

Females

595

F18-39

595

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5605

Females

655

F18-39

655

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5024

Females

538

F18-39

538

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4296

Females

403

F18-39

403

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3771

Females

375

F18-39

375

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3493

Females

356

F18-39

356

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3051

Females

298

F18-39

298

Passing Analysis

Category:
Athletes Passed
5158*
Passed By
131
Net Change
+5027
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12206
5K → 10K148927+1462#12206#10744
10K → 15K803*9+794#10744#9950
15K → 20K381*25+356#9950#9594
20K → Half5310+43#9594#9551
Half → 25K20241+161#9551#9390
25K → 30K582*6+576#9390#8814
30K → 20M2782+276#8814#8538
20M → 21M2333+230#8538#8308
21M → 35K1291+128#8308#8180
35K → 23M2613+258#8180#7922
23M → 24M2330+233#7922#7689
24M → 40K1984+194#7689#7495
40K → 25.2M700+70#7495#7425
25.2M → Finish2460+246#7425#7179
TOTALS5158*131+5027

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

📊

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