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BOSTON MARATHON 2023

Brittni Smith

Bib: 14748•F

IL

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 25%
Gender (Female)
#0 / 11423
Top 7%
Division (F18-39)
#0 / 4884
Top 13%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:06
Rank: #9110
Start → 5K
23:06 | 7:26/mi
10K· 6.21 mi
45:44
Rank: #8892 (+218)
5K → 10K
22:38 | 7:17/mi
15K· 9.32 mi
1:08:31
Rank: #8851 (+41)
10K → 15K
22:47 | 7:20/mi
20K· 12.43 mi
1:30:52
Rank: #8332 (+519)
15K → 20K
22:21 | 7:12/mi
Half· 13.11 mi
1:35:42
Rank: #8259 (+73)
20K → Half
4:50 | 7:05/mi
25K· 15.53 mi
1:53:07
Rank: #7940 (+319)
Half → 25K
17:25 | 7:11/mi
30K· 18.64 mi
2:15:41
Rank: #7483 (+457)
25K → 30K
22:34 | 7:16/mi
20M
2:25:43
Rank: #7347 (+136)
30K → 20M
10:02 | 7:23/mi
21M
2:33:20
Rank: #7201 (+146)
20M → 21M
7:37 | 7:37/mi
35K· 21.75 mi
2:38:26
Rank: #7072 (+129)
21M → 35K
5:06 | 6:49/mi
23M
2:47:26
Rank: #6871 (+201)
35K → 23M
9:00 | 7:11/mi
24M
2:54:23
Rank: #6723 (+148)
23M → 24M
6:57 | 6:57/mi
40K· 24.85 mi
3:00:31
Rank: #6605 (+118)
24M → 40K
6:08 | 7:10/mi
25.2M
3:03:12
Rank: #6575 (+30)
40K → 25.2M
2:41 | 7:47/mi
Finish· 26.22 mi
3:10:30
Rank: #6529 (+46)
25.2M → Finish
7:18 | 7:10/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:35:42
Pace7:18 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:34:48
Pace7:14 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:2223:067:2623:06
7:26
-
10K
6.21 mi11:15:0045:447:2222:38
7:17
-0:09
15K
9.32 mi11:37:471:08:317:2122:47
7:20
+0:03
20K
12.43 mi12:00:081:30:527:1922:21
7:12
-0:08
Half
13.11 mi12:04:581:35:427:184:50
7:05
-0:07
25K
15.53 mi12:22:231:53:077:1717:25
7:11
+0:06
30K
18.64 mi12:44:572:15:417:1722:34
7:16
+0:05
20M
20.00 mi12:54:592:25:437:1710:02
7:23
+0:07
21M
21.00 mi13:02:362:33:207:187:37
7:37
+0:14
35K
21.75 mi13:07:422:38:267:175:06
6:49
-0:48
23M
23.00 mi13:16:422:47:267:179:00
7:11
+0:22
24M
24.00 mi13:23:392:54:237:166:57
6:57
-0:14
40K
24.85 mi13:29:473:00:317:166:08
7:10
+0:13
25.2M
25.20 mi13:32:283:03:127:162:41
7:47
+0:37
Finish
26.22 mi13:39:463:10:307:167:18
7:10
-0:37

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

6:49 /mi

Average Pace

7:16 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:00:12

95% of race

Time at Steady Pace

10:18

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:16 /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 mi10:52:2223:067:2623:06
7:26
#9110
10K
6.21 mi11:15:0045:447:2222:38
7:17
#8892
15K
9.32 mi11:37:471:08:317:2122:47
7:20
#8851
20K
12.43 mi12:00:081:30:527:1922:21
7:12
#8332
Half
13.11 mi12:04:581:35:427:184:50
7:05
#8259
25K
15.53 mi12:22:231:53:077:1717:25
7:11
#7940
30K
18.64 mi12:44:572:15:417:1722:34
7:16
#7483
20M
20.00 mi12:54:592:25:437:1710:02
7:23
#7347
21M
21.00 mi13:02:362:33:207:187:37
7:37
#7201
35K
21.75 mi13:07:422:38:267:175:06
6:49
#7072
23M
23.00 mi13:16:422:47:267:179:00
7:11
#6871
24M
24.00 mi13:23:392:54:237:166:57
6:57
#6723
40K
24.85 mi13:29:473:00:317:166:08
7:10
#6605
25.2M
25.20 mi13:32:283:03:127:162:41
7:47
#6575
Finish
26.22 mi13:39:463:10:307:167:18
7:10
#6529
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9110143214328831(Top 33%)1374(Top 12%)1374(Top 28%)
10K6.21 mi3.10 mi8892+2181366+661366+668770(Top 33%)1324(Top 12%)1324(Top 27%)
15K9.32 mi3.11 mi8851+411367-11367-18831(Top 33%)1374(Top 12%)1374(Top 28%)
20K12.43 mi3.11 mi8332+5191168+1991168+1997066(Top 27%)796(Top 7%)796(Top 16%)
Half13.11 mi0.68 mi8259+731145+231145+237098(Top 27%)790(Top 7%)790(Top 16%)
25K15.53 mi2.42 mi7940+3191054+911054+916603(Top 25%)732(Top 6%)732(Top 15%)
30K18.64 mi3.11 mi7483+457930+124930+1245849(Top 22%)585(Top 5%)585(Top 12%)
20M20.00 mi1.36 mi7347+136894+36894+366119(Top 23%)733(Top 6%)733(Top 15%)
21M21.00 mi1.00 mi7201+146862+32862+325218(Top 20%)589(Top 5%)589(Top 12%)
35K21.75 mi0.75 mi7072+129828+34828+344365(Top 16%)374(Top 3%)374(Top 8%)
23M23.00 mi1.25 mi6871+201796+32796+324757(Top 18%)479(Top 4%)479(Top 10%)
24M24.00 mi1.00 mi6723+148773+23773+234450(Top 17%)431(Top 4%)431(Top 9%)
40K24.85 mi0.85 mi6605+118761+12761+124776(Top 18%)580(Top 5%)580(Top 12%)
25.2M25.20 mi0.35 mi6575+30755+6755+65349(Top 20%)841(Top 7%)841(Top 17%)
Finish26.22 mi1.02 mi6529+46756-1756-16206(Top 23%)1130(Top 10%)1130(Top 23%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

8831

Females

1374

F18-39

1374

5K→10K

3.1 - 6.2 mi

Top 33%
×5stories
+79ft-138ft

Overall

8770

Females

1324

F18-39

1324

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

8831

Females

1374

F18-39

1374

15K→20K

9.3 - 12.4 mi

Top 27%
×5stories
+106ft-86ft

Overall

7066

Females

796

F18-39

796

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7098

Females

790

F18-39

790

Half→25K

13.1 - 15.5 mi

Top 25%
×4stories
+66ft-88ft

Overall

6603

Females

732

F18-39

732

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

5849

Females

585

F18-39

585

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6119

Females

733

F18-39

733

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5218

Females

589

F18-39

589

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4365

Females

374

F18-39

374

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

4757

Females

479

F18-39

479

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4450

Females

431

F18-39

431

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4776

Females

580

F18-39

580

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5349

Females

841

F18-39

841

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6206

Females

1130

F18-39

1130

Passing Analysis

Category:
Athletes Passed
2977
Passed By
396
Net Change
+2581
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9110
5K → 10K393175+218#9110#8892
10K → 15K161120+41#8892#8851
15K → 20K5245+519#8851#8332
20K → Half752+73#8332#8259
Half → 25K3234+319#8259#7940
25K → 30K4669+457#7940#7483
30K → 20M14711+136#7483#7347
20M → 21M1548+146#7347#7201
21M → 35K1301+129#7201#7072
35K → 23M2076+201#7072#6871
23M → 24M1535+148#6871#6723
24M → 40K1257+118#6723#6605
40K → 25.2M4111+30#6605#6575
25.2M → Finish7832+46#6575#6529
TOTALS2977396+2581
📊

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