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BOSTON MARATHON 2023

Caitlin Smith

Bib: 26314•F

MA

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

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
29:37
Rank: #22201
Start → 5K
29:37 | 9:32/mi
10K· 6.21 mi
56:10
Rank: #20805 (+1396)
5K → 10K
26:33 | 8:33/mi
15K· 9.32 mi
1:22:27
Rank: #19846 (+959)
10K → 15K
26:17 | 8:28/mi
20K· 12.43 mi
1:48:58
Rank: #19167 (+679)
15K → 20K
26:31 | 8:32/mi
Half· 13.11 mi
1:54:52
Rank: #19132 (+35)
20K → Half
5:54 | 8:39/mi
25K· 15.53 mi
2:16:49
Rank: #19126 (+6)
Half → 25K
21:57 | 9:03/mi
30K· 18.64 mi
2:46:04
Rank: #19147 (-21)
25K → 30K
29:15 | 9:25/mi
20M
2:59:19
Rank: #19202 (-55)
30K → 20M
13:15 | 9:45/mi
21M
3:10:45
Rank: #19436 (-234)
20M → 21M
11:26 | 11:26/mi
35K· 21.75 mi
3:21:02
Rank: #20092 (-656)
21M → 35K
10:17 | 13:45/mi
23M
3:34:01
Rank: #20145 (-53)
35K → 23M
12:59 | 10:22/mi
24M
3:44:23
Rank: #20243 (-98)
23M → 24M
10:22 | 10:22/mi
40K· 24.85 mi
3:53:21
Rank: #20257 (-14)
24M → 40K
8:58 | 10:29/mi
25.2M
3:57:04
Rank: #20250 (+7)
40K → 25.2M
3:43 | 10:47/mi
Finish· 26.22 mi
4:06:41
Rank: #20239 (+11)
25.2M → Finish
9:37 | 9:26/mi

Course Map & Elevation

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:52
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time2:11:49
Pace10:03 /mi
📊Positive Split: 14.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:3129:379:3229:37
9:32
-
10K
6.21 mi12:13:0456:109:0226:33
8:33
-0:59
15K
9.32 mi12:39:211:22:278:5126:17
8:28
-0:05
20K
12.43 mi13:05:521:48:588:4626:31
8:32
+0:04
Half
13.11 mi13:11:461:54:528:465:54
8:39
+0:07
25K
15.53 mi13:33:432:16:498:4821:57
9:03
+0:24
30K
18.64 mi14:02:582:46:048:5529:15
9:25
+0:22
20M
20.00 mi14:16:132:59:198:5813:15
9:45
+0:20
21M
21.00 mi14:27:393:10:459:0511:26
11:26
+1:41
35K
21.75 mi14:37:563:21:029:1510:17
13:45
+2:19
23M
23.00 mi14:50:553:34:019:1812:59
10:22
-3:23
24M
24.00 mi15:01:173:44:239:2110:22
10:22
0:00
40K
24.85 mi15:10:153:53:219:238:58
10:29
+0:07
25.2M
25.20 mi15:13:583:57:049:243:43
10:47
+0:18
Finish
26.22 mi15:23:354:06:419:259:37
9:26
-1:21

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

8:28 /mi

Average Pace

9:25 /mi

Slowest Pace

13:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:25:15

35% of race

Time at Steady Pace

1:43:41

42% of race

Time at Slower Pace

57:45

23% of race

Average Pace: 9:24 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:46:3129:379:3229:37
9:32
#22201
10K
6.21 mi12:13:0456:109:0226:33
8:33
#20805
15K
9.32 mi12:39:211:22:278:5126:17
8:28
#19846
20K
12.43 mi13:05:521:48:588:4626:31
8:32
#19167
Half
13.11 mi13:11:461:54:528:465:54
8:39
#19132
25K
15.53 mi13:33:432:16:498:4821:57
9:03
#19126
30K
18.64 mi14:02:582:46:048:5529:15
9:25
#19147
20M
20.00 mi14:16:132:59:198:5813:15
9:45
#19202
21M
21.00 mi14:27:393:10:459:0511:26
11:26
#19436
35K
21.75 mi14:37:563:21:029:1510:17
13:45
#20092
23M
23.00 mi14:50:553:34:019:1812:59
10:22
#20145
24M
24.00 mi15:01:173:44:239:2110:22
10:22
#20243
40K
24.85 mi15:10:153:53:219:238:58
10:29
#20257
25.2M
25.20 mi15:13:583:57:049:243:43
10:47
#20250
Finish
26.22 mi15:23:354:06:419:259:37
9:26
#20239
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi222018977897717559(Top 66%)6251(Top 55%)6251(Top 128%)
10K6.21 mi3.10 mi20805+13968204+7738204+77318549(Top 70%)6802(Top 60%)6802(Top 139%)
15K9.32 mi3.11 mi19846+9597649+5557649+55517559(Top 66%)6251(Top 55%)6251(Top 128%)
20K12.43 mi3.11 mi19167+6797215+4347215+43417105(Top 64%)5994(Top 52%)5994(Top 123%)
Half13.11 mi0.68 mi19132+357198+177198+1718698(Top 70%)6912(Top 61%)6912(Top 142%)
25K15.53 mi2.42 mi19126+67192+67192+619228(Top 72%)7266(Top 64%)7266(Top 149%)
30K18.64 mi3.11 mi19147-217226-347226-3419116(Top 72%)7261(Top 64%)7261(Top 149%)
20M20.00 mi1.36 mi19202-557268-427268-4219724(Top 74%)7716(Top 68%)7716(Top 158%)
21M21.00 mi1.00 mi19436-2347425-1577425-15721758(Top 82%)8857(Top 78%)8857(Top 181%)
35K21.75 mi0.75 mi20092-6567810-3857810-38526038(Top 98%)11153(Top 98%)11153(Top 228%)
23M23.00 mi1.25 mi20145-537850-407850-4021003(Top 79%)8525(Top 75%)8525(Top 175%)
24M24.00 mi1.00 mi20243-987915-657915-6521709(Top 82%)8950(Top 78%)8950(Top 183%)
40K24.85 mi0.85 mi20257-147935-207935-2021187(Top 80%)8715(Top 76%)8715(Top 178%)
25.2M25.20 mi0.35 mi20250+77933+27933+219941(Top 75%)8030(Top 70%)8030(Top 164%)
Finish26.22 mi1.02 mi20239+117936-37936-319917(Top 75%)7950(Top 70%)7950(Top 163%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21stories
+97ft-345ft

Overall

17559

Females

6251

F18-39

6251

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

18549

Females

6802

F18-39

6802

10K→15K

6.2 - 9.3 mi

Top 66%
×3stories
+67ft-78ft

Overall

17559

Females

6251

F18-39

6251

15K→20K

9.3 - 12.4 mi

Top 64%
×5stories
+106ft-86ft

Overall

17105

Females

5994

F18-39

5994

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

18698

Females

6912

F18-39

6912

Half→25K

13.1 - 15.5 mi

Top 72%
×4stories
+66ft-88ft

Overall

19228

Females

7266

F18-39

7266

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

19116

Females

7261

F18-39

7261

30K→20M

18.6 - 20.0 mi

Top 74%
×5stories
+64ft-50ft

Overall

19724

Females

7716

F18-39

7716

20M→21M

20.0 - 21.0 mi

Top 82%
×8stories
+106ft-24ft

Overall

21758

Females

8857

F18-39

8857

21M→35K

21.0 - 21.8 mi

Top 98%
×7stories
+17ft-86ft

Overall

26038

Females

11153

F18-39

11153

35K→23M

21.8 - 23.0 mi

Top 79%
×5stories
+23ft-63ft

Overall

21003

Females

8525

F18-39

8525

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

21709

Females

8950

F18-39

8950

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21187

Females

8715

F18-39

8715

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

19941

Females

8030

F18-39

8030

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2stories
+22ft-21ft

Overall

19917

Females

7950

F18-39

7950

Passing Analysis

Category:
Athletes Passed
3662
Passed By
1700
Net Change
+1962
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22201
5K → 10K14026+1396#22201#20805
10K → 15K9634+959#20805#19846
15K → 20K6878+679#19846#19167
20K → Half4510+35#19167#19132
Half → 25K115109+6#19132#19126
25K → 30K166187-21#19126#19147
30K → 20M70125-55#19147#19202
20M → 21M31265-234#19202#19436
21M → 35K3659-656#19436#20092
35K → 23M59112-53#20092#20145
23M → 24M20118-98#20145#20243
24M → 40K3549-14#20243#20257
40K → 25.2M2114+7#20257#20250
25.2M → Finish4534+11#20250#20239
TOTALS36621700+1962
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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