Boston Marathon logo
BOSTON MARATHON 2023

Casey Lane

Bib: 26924•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
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
10:59/mi
34:08
↑ 97↓ 3451.5%
10K· 6.21 mi
11:08/mi
1:08:43
↑ 79↓ 1380.4%
15K· 9.32 mi
11:25/mi
1:44:10
↑ 67↓ 78
20K· 12.43 mi
11:57/mi
2:21:19
↑ 106↓ 860.1%
Half· 13.11 mi
12:03/mi
2:29:32
↑ 19↓ 370.5%
25K· 15.53 mi
12:32/mi
2:59:56
↑ 66↓ 880.2%
30K· 18.64 mi
13:23/mi
3:41:32
↑ 181↓ 1480.2%
20M
13:59/mi
4:00:32
↑ 64↓ 500.2%
21M
14:59/mi
4:15:31
↑ 106↓ 241.6%
35K· 21.75 mi
14:29/mi
4:26:21
↑ 17↓ 861.7%
23M
14:06/mi
4:44:00
↑ 23↓ 630.6%
24M
12:44/mi
4:56:44
↓ 821.3%
40K· 24.85 mi
13:04/mi
5:07:54
↓ 200.3%
25.2M
14:27/mi
5:12:53
↑ 13↓ 160.2%
Finish· 26.22 mi
11:47/mi
5:24:53
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:29:32
Pace11:24 /mi
2nd Half
Distance13.11 mi
Time2:55:21
Pace13:23 /mi
📊Positive Split: 17.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:5234:0810:5934:08
10:59
-
10K
6.21 mi12:25:271:08:4311:0434:35
11:08
+0:09
15K
9.32 mi13:00:541:44:1011:1135:27
11:25
+0:17
20K
12.43 mi13:38:032:21:1911:2237:09
11:57
+0:32
Half
13.11 mi13:46:162:29:3211:248:13
12:03
+0:06
25K
15.53 mi14:16:402:59:5611:3530:24
12:32
+0:29
30K
18.64 mi14:58:163:41:3211:5341:36
13:23
+0:51
20M
20.00 mi15:17:164:00:3212:0219:00
13:59
+0:36
21M
21.00 mi15:32:154:15:3112:1014:59
14:59
+1:00
35K
21.75 mi15:43:054:26:2112:1510:50
14:29
-0:30
23M
23.00 mi16:00:444:44:0012:2117:39
14:06
-0:23
24M
24.00 mi16:13:284:56:4412:2212:44
12:44
-1:22
40K
24.85 mi16:24:385:07:5412:2311:10
13:04
+0:20
25.2M
25.20 mi16:29:375:12:5312:254:59
14:27
+1:23
Finish
26.22 mi16:41:375:24:5312:2412:00
11:47
-2:40

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

10:59 /mi

Average Pace

12:24 /mi

Slowest Pace

14:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:32

50% of race

Time at Steady Pace

54:18

17% of race

Time at Slower Pace

1:49:03

34% of race

Average Pace: 12:23 /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 mi11:50:5234:0810:5934:08
10:59
#25661
10K
6.21 mi12:25:271:08:4311:0434:35
11:08
#25674
15K
9.32 mi13:00:541:44:1011:1135:27
11:25
#25674
20K
12.43 mi13:38:032:21:1911:2237:09
11:57
#25668
Half
13.11 mi13:46:162:29:3211:248:13
12:03
#25696
25K
15.53 mi14:16:402:59:5611:3530:24
12:32
#25684
30K
18.64 mi14:58:163:41:3211:5341:36
13:23
#25699
20M
20.00 mi15:17:164:00:3212:0219:00
13:59
#25712
21M
21.00 mi15:32:154:15:3112:1014:59
14:59
#25736
35K
21.75 mi15:43:054:26:2112:1510:50
14:29
#25776
23M
23.00 mi16:00:444:44:0012:2117:39
14:06
#25789
24M
24.00 mi16:13:284:56:4412:2212:44
12:44
#25783
40K
24.85 mi16:24:385:07:5412:2311:10
13:04
#25763
25.2M
25.20 mi16:29:375:12:5312:254:59
14:27
#25765
Finish
26.22 mi16:41:375:24:5312:2412:00
11:47
#25751
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25661108301083025624(Top 96%)10824(Top 95%)10824(Top 222%)
10K6.21 mi3.10 mi25674-1310841-1110841-1125612(Top 96%)10804(Top 95%)10804(Top 221%)
15K9.32 mi3.11 mi2567410840+110840+125624(Top 96%)10824(Top 95%)10824(Top 222%)
20K12.43 mi3.11 mi25668+610852-1210852-1225633(Top 96%)10849(Top 95%)10849(Top 222%)
Half13.11 mi0.68 mi25696-2810870-1810870-1825912(Top 97%)11009(Top 96%)11009(Top 225%)
25K15.53 mi2.42 mi25684+1210867+310867+325575(Top 96%)10836(Top 95%)10836(Top 222%)
30K18.64 mi3.11 mi25699-1510887-2010887-2025691(Top 97%)10944(Top 96%)10944(Top 224%)
20M20.00 mi1.36 mi25712-1310896-910896-925813(Top 97%)11023(Top 96%)11023(Top 226%)
21M21.00 mi1.00 mi25736-2410913-1710913-1725712(Top 97%)10958(Top 96%)10958(Top 224%)
35K21.75 mi0.75 mi25776-4010937-2410937-2426300(Top 99%)11275(Top 99%)11275(Top 231%)
23M23.00 mi1.25 mi25789-1310951-1410951-1425891(Top 97%)11091(Top 97%)11091(Top 227%)
24M24.00 mi1.00 mi25783+610950+110950+125281(Top 95%)10820(Top 95%)10820(Top 222%)
40K24.85 mi0.85 mi25763+2010945+510945+524993(Top 94%)10675(Top 93%)10675(Top 219%)
25.2M25.20 mi0.35 mi25765-210947-210947-225378(Top 95%)10869(Top 95%)10869(Top 223%)
Finish26.22 mi1.02 mi25751+1410943+410943+425019(Top 94%)10678(Top 93%)10678(Top 219%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21story building
+97ft-345ft

Overall

25624

Females

10824

F18-39

10824

5K→10K

3.1 - 6.2 mi

Top 96%
×5story building
+79ft-138ft

Overall

25612

Females

10804

F18-39

10804

10K→15K

6.2 - 9.3 mi

Top 96%
×3story building
+67ft-78ft

Overall

25624

Females

10824

F18-39

10824

15K→20K

9.3 - 12.4 mi

Top 96%
×5story building
+106ft-86ft

Overall

25633

Females

10849

F18-39

10849

20K→Half

12.4 - 13.1 mi

Top 97%
×2story building
+19ft-37ft

Overall

25912

Females

11009

F18-39

11009

Half→25K

13.1 - 15.5 mi

Top 96%
×4story building
+66ft-88ft

Overall

25575

Females

10836

F18-39

10836

25K→30K

15.5 - 18.6 mi

Top 97%
×9story building
+181ft-148ft

Overall

25691

Females

10944

F18-39

10944

30K→20M

18.6 - 20.0 mi

Top 97%
×5story building
+64ft-50ft

Overall

25813

Females

11023

F18-39

11023

20M→21M

20.0 - 21.0 mi

Top 97%
×8story building
+106ft-24ft

Overall

25712

Females

10958

F18-39

10958

21M→35K

21.0 - 21.8 mi

Top 99%
×7story building
+17ft-86ft

Overall

26300

Females

11275

F18-39

11275

35K→23M

21.8 - 23.0 mi

Top 97%
×5story building
+23ft-63ft

Overall

25891

Females

11091

F18-39

11091

23M→24M

23.0 - 24.0 mi

Top 95%
×6story building
+12ft-82ft

Overall

25281

Females

10820

F18-39

10820

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

24993

Females

10675

F18-39

10675

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

25378

Females

10869

F18-39

10869

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2story building
+22ft-21ft

Overall

25019

Females

10678

F18-39

10678

Passing Analysis

Category:
Athletes Passed
535
Passed By
625
Net Change
-90
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25661
5K → 10K119132-13#25661#25674
10K → 15K95950#25674#25674
15K → 20K8680+6#25674#25668
20K → Half937-28#25668#25696
Half → 25K6654+12#25696#25684
25K → 30K5166-15#25684#25699
30K → 20M1831-13#25699#25712
20M → 21M1034-24#25712#25736
21M → 35K545-40#25736#25776
35K → 23M1326-13#25776#25789
23M → 24M148+6#25789#25783
24M → 40K266+20#25783#25763
40K → 25.2M46-2#25763#25765
25.2M → Finish195+14#25765#25751
TOTALS535625-90
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing