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BOSTON MARATHON 2023

Clara Lin

Bib: 11235•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 18%
Gender (Female)
#0 / 11423
Top 3%
Division (F18-39)
#0 / 4884
Top 6%
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
7:10/mi
22:15
↑ 97↓ 3451.5%
10K· 6.21 mi
6:51/mi
43:31
↑ 79↓ 1380.4%
15K· 9.32 mi
6:52/mi
1:04:50
↑ 67↓ 78
20K· 12.43 mi
6:54/mi
1:26:17
↑ 106↓ 860.1%
Half· 13.11 mi
6:49/mi
1:30:56
↑ 19↓ 370.5%
25K· 15.53 mi
6:52/mi
1:47:35
↑ 66↓ 880.2%
30K· 18.64 mi
7:03/mi
2:09:28
↑ 181↓ 1480.2%
20M
7:07/mi
2:19:08
↑ 64↓ 500.2%
21M
7:21/mi
2:26:29
↑ 106↓ 241.6%
35K· 21.75 mi
6:44/mi
2:31:31
↑ 17↓ 861.7%
23M
6:47/mi
2:40:01
↑ 23↓ 630.6%
24M
6:48/mi
2:46:49
↓ 821.3%
40K· 24.85 mi
7:01/mi
2:52:49
↓ 200.3%
25.2M
7:29/mi
2:55:24
↑ 13↓ 160.2%
Finish· 26.22 mi
6:56/mi
3:02:28
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:30:56
Pace6:56 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:31:32
Pace6:59 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:1622:157:1022:15
7:10
-
10K
6.21 mi11:10:3243:317:0021:16
6:51
-0:19
15K
9.32 mi11:31:511:04:506:5721:19
6:52
+0:01
20K
12.43 mi11:53:181:26:176:5721:27
6:54
+0:02
Half
13.11 mi11:57:571:30:566:564:39
6:49
-0:05
25K
15.53 mi12:14:361:47:356:5616:39
6:52
+0:03
30K
18.64 mi12:36:292:09:286:5721:53
7:03
+0:11
20M
20.00 mi12:46:092:19:086:579:40
7:07
+0:04
21M
21.00 mi12:53:302:26:296:597:21
7:21
+0:14
35K
21.75 mi12:58:322:31:316:585:02
6:44
-0:37
23M
23.00 mi13:07:022:40:016:578:30
6:47
+0:03
24M
24.00 mi13:13:502:46:496:576:48
6:48
+0:01
40K
24.85 mi13:19:502:52:496:576:00
7:01
+0:13
25.2M
25.20 mi13:22:252:55:246:582:35
7:29
+0:28
Finish
26.22 mi13:29:293:02:286:587:04
6:56
-0:33

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

6:44 /mi

Average Pace

6:58 /mi

Slowest Pace

7:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:53

99% of race

Time at Steady Pace

2:35

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:58 /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 mi10:49:1622:157:1022:15
7:10
#7272
10K
6.21 mi11:10:3243:317:0021:16
6:51
#6520
15K
9.32 mi11:31:511:04:506:5721:19
6:52
#6229
20K
12.43 mi11:53:181:26:176:5721:27
6:54
#6002
Half
13.11 mi11:57:571:30:566:564:39
6:49
#5968
25K
15.53 mi12:14:361:47:356:5616:39
6:52
#5744
30K
18.64 mi12:36:292:09:286:5721:53
7:03
#5497
20M
20.00 mi12:46:092:19:086:579:40
7:07
#5402
21M
21.00 mi12:53:302:26:296:597:21
7:21
#5254
35K
21.75 mi12:58:322:31:316:585:02
6:44
#5174
23M
23.00 mi13:07:022:40:016:578:30
6:47
#4961
24M
24.00 mi13:13:502:46:496:576:48
6:48
#4865
40K
24.85 mi13:19:502:52:496:576:00
7:01
#4799
25.2M
25.20 mi13:22:252:55:246:582:35
7:29
#4763
Finish
26.22 mi13:29:293:02:286:587:04
6:56
#4712
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi72727837835676(Top 21%)458(Top 4%)458(Top 9%)
10K6.21 mi3.10 mi6520+752626+157626+1575716(Top 21%)474(Top 4%)474(Top 10%)
15K9.32 mi3.11 mi6229+291563+63563+635676(Top 21%)458(Top 4%)458(Top 9%)
20K12.43 mi3.11 mi6002+227518+45518+455395(Top 20%)410(Top 4%)410(Top 8%)
Half13.11 mi0.68 mi5968+34513+5513+55470(Top 21%)418(Top 4%)418(Top 9%)
25K15.53 mi2.42 mi5744+224460+53460+534738(Top 18%)338(Top 3%)338(Top 7%)
30K18.64 mi3.11 mi5497+247429+31429+314644(Top 17%)349(Top 3%)349(Top 7%)
20M20.00 mi1.36 mi5402+95418+11418+114700(Top 18%)396(Top 3%)396(Top 8%)
21M21.00 mi1.00 mi5254+148405+13405+133915(Top 15%)300(Top 3%)300(Top 6%)
35K21.75 mi0.75 mi5174+80400+5400+53784(Top 14%)294(Top 3%)294(Top 6%)
23M23.00 mi1.25 mi4961+213371+29371+292635(Top 10%)164(Top 1%)164(Top 3%)
24M24.00 mi1.00 mi4865+96357+14357+143688(Top 14%)305(Top 3%)305(Top 6%)
40K24.85 mi0.85 mi4799+66355+2355+23962(Top 15%)400(Top 4%)400(Top 8%)
25.2M25.20 mi0.35 mi4763+363553553929(Top 15%)418(Top 4%)418(Top 9%)
Finish26.22 mi1.02 mi4712+513553554852(Top 18%)678(Top 6%)678(Top 14%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21story building
+97ft-345ft

Overall

5676

Females

458

F18-39

458

5K→10K

3.1 - 6.2 mi

Top 21%
×5story building
+79ft-138ft

Overall

5716

Females

474

F18-39

474

10K→15K

6.2 - 9.3 mi

Top 21%
×3story building
+67ft-78ft

Overall

5676

Females

458

F18-39

458

15K→20K

9.3 - 12.4 mi

Top 20%
×5story building
+106ft-86ft

Overall

5395

Females

410

F18-39

410

20K→Half

12.4 - 13.1 mi

Top 21%
×2story building
+19ft-37ft

Overall

5470

Females

418

F18-39

418

Half→25K

13.1 - 15.5 mi

Top 18%
×4story building
+66ft-88ft

Overall

4738

Females

338

F18-39

338

25K→30K

15.5 - 18.6 mi

Top 17%
×9story building
+181ft-148ft

Overall

4644

Females

349

F18-39

349

30K→20M

18.6 - 20.0 mi

Top 18%
×5story building
+64ft-50ft

Overall

4700

Females

396

F18-39

396

20M→21M

20.0 - 21.0 mi

Top 15%
×8story building
+106ft-24ft

Overall

3915

Females

300

F18-39

300

21M→35K

21.0 - 21.8 mi

Top 14%
×7story building
+17ft-86ft

Overall

3784

Females

294

F18-39

294

35K→23M

21.8 - 23.0 mi

Top 10%
×5story building
+23ft-63ft

Overall

2635

Females

164

F18-39

164

23M→24M

23.0 - 24.0 mi

Top 14%
×6story building
+12ft-82ft

Overall

3688

Females

305

F18-39

305

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

3962

Females

400

F18-39

400

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

3929

Females

418

F18-39

418

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2story building
+22ft-21ft

Overall

4852

Females

678

F18-39

678

Passing Analysis

Category:
Athletes Passed
2730
Passed By
170
Net Change
+2560
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7272
5K → 10K76816+752#7272#6520
10K → 15K31423+291#6520#6229
15K → 20K24518+227#6229#6002
20K → Half417+34#6002#5968
Half → 25K2339+224#5968#5744
25K → 30K26619+247#5744#5497
30K → 20M11318+95#5497#5402
20M → 21M1535+148#5402#5254
21M → 35K833+80#5254#5174
35K → 23M2152+213#5174#4961
23M → 24M1048+96#4961#4865
24M → 40K7610+66#4865#4799
40K → 25.2M426+36#4799#4763
25.2M → Finish7726+51#4763#4712
TOTALS2730170+2560
📊

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