Boston Marathon logo
BOSTON MARATHON 2023

Erika Lilley

Bib: 25114•F

CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
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
9:10/mi
28:28
↑ 97↓ 3451.5%
10K· 6.21 mi
9:14/mi
57:10
↑ 79↓ 1380.4%
15K· 9.32 mi
9:10/mi
1:25:39
↑ 67↓ 78
20K· 12.43 mi
9:50/mi
1:56:12
↑ 106↓ 860.1%
Half· 13.11 mi
10:20/mi
2:03:15
↑ 19↓ 370.5%
25K· 15.53 mi
10:09/mi
2:27:51
↑ 66↓ 880.2%
30K· 18.64 mi
10:37/mi
3:00:50
↑ 181↓ 1480.2%
20M
11:00/mi
3:15:47
↑ 64↓ 500.2%
21M
11:07/mi
3:26:54
↑ 106↓ 241.6%
35K· 21.75 mi
10:27/mi
3:34:43
↑ 17↓ 861.7%
23M
10:49/mi
3:48:16
↑ 23↓ 630.6%
24M
10:42/mi
3:58:58
↓ 821.3%
40K· 24.85 mi
10:50/mi
4:08:14
↓ 200.3%
25.2M
11:21/mi
4:12:09
↑ 13↓ 160.2%
Finish· 26.22 mi
9:59/mi
4:22:19
↑ 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
Time2:03:15
Pace9:24 /mi
2nd Half
Distance13.11 mi
Time2:19:04
Pace10:37 /mi
📊Positive Split: 12.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:3028:289:1028:28
9:10
-
10K
6.21 mi12:13:1257:109:1228:42
9:14
+0:04
15K
9.32 mi12:41:411:25:399:1128:29
9:10
-0:04
20K
12.43 mi13:12:141:56:129:2130:33
9:50
+0:40
Half
13.11 mi13:19:172:03:159:247:03
10:20
+0:30
25K
15.53 mi13:43:532:27:519:3124:36
10:09
-0:11
30K
18.64 mi14:16:523:00:509:4232:59
10:37
+0:28
20M
20.00 mi14:31:493:15:479:4714:57
11:00
+0:23
21M
21.00 mi14:42:563:26:549:5111:07
11:07
+0:07
35K
21.75 mi14:50:453:34:439:527:49
10:27
-0:40
23M
23.00 mi15:04:183:48:169:5513:33
10:49
+0:22
24M
24.00 mi15:15:003:58:589:5710:42
10:42
-0:07
40K
24.85 mi15:24:164:08:149:599:16
10:50
+0:08
25.2M
25.20 mi15:28:114:12:0910:003:55
11:21
+0:31
Finish
26.22 mi15:38:214:22:1910:0110:10
9:59
-1:22

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

9:10 /mi

Average Pace

10:01 /mi

Slowest Pace

11:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:22

48% of race

Time at Steady Pace

1:23:09

32% of race

Time at Slower Pace

52:48

20% of race

Average Pace: 10:00 /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 mi11:44:3028:289:1028:28
9:10
#21095
10K
6.21 mi12:13:1257:109:1228:42
9:14
#21399
15K
9.32 mi12:41:411:25:399:1128:29
9:10
#21325
20K
12.43 mi13:12:141:56:129:2130:33
9:50
#21672
Half
13.11 mi13:19:172:03:159:247:03
10:20
#21809
25K
15.53 mi13:43:532:27:519:3124:36
10:09
#21945
30K
18.64 mi14:16:523:00:509:4232:59
10:37
#22067
20M
20.00 mi14:31:493:15:479:4714:57
11:00
#22128
21M
21.00 mi14:42:563:26:549:5111:07
11:07
#22069
35K
21.75 mi14:50:453:34:439:527:49
10:27
#22080
23M
23.00 mi15:04:183:48:169:5513:33
10:49
#22068
24M
24.00 mi15:15:003:58:589:5710:42
10:42
#22076
40K
24.85 mi15:24:164:08:149:599:16
10:50
#22073
25.2M
25.20 mi15:28:114:12:0910:003:55
11:21
#22063
Finish
26.22 mi15:38:214:22:1910:0110:10
9:59
#22049
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi210958422842221198(Top 80%)8341(Top 73%)8341(Top 444%)
10K6.21 mi3.10 mi21399-3048531-1098531-10921740(Top 82%)8684(Top 76%)8684(Top 462%)
15K9.32 mi3.11 mi21325+748459+728459+7221198(Top 80%)8341(Top 73%)8341(Top 444%)
20K12.43 mi3.11 mi21672-3478645-1868645-18622481(Top 84%)9073(Top 79%)9073(Top 483%)
Half13.11 mi0.68 mi21809-1378717-728717-7223904(Top 90%)9860(Top 86%)9860(Top 525%)
25K15.53 mi2.42 mi21945-1368796-798796-7922515(Top 85%)9123(Top 80%)9123(Top 486%)
30K18.64 mi3.11 mi22067-1228874-788874-7822448(Top 84%)9154(Top 80%)9154(Top 487%)
20M20.00 mi1.36 mi22128-618921-478921-4722717(Top 85%)9372(Top 82%)9372(Top 499%)
21M21.00 mi1.00 mi22069+598901+208901+2021073(Top 79%)8501(Top 74%)8501(Top 453%)
35K21.75 mi0.75 mi22080-118910-98910-922289(Top 84%)9207(Top 81%)9207(Top 490%)
23M23.00 mi1.25 mi22068+128910891022015(Top 83%)9081(Top 79%)9081(Top 484%)
24M24.00 mi1.00 mi22076-88922-128922-1222461(Top 84%)9344(Top 82%)9344(Top 498%)
40K24.85 mi0.85 mi22073+38932-108932-1022022(Top 83%)9161(Top 80%)9161(Top 488%)
25.2M25.20 mi0.35 mi22063+108926+68926+621286(Top 80%)8749(Top 77%)8749(Top 466%)
Finish26.22 mi1.02 mi22049+148929-38929-321706(Top 82%)8961(Top 78%)8961(Top 477%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

21198

Females

8341

F40-44

8341

5K→10K

3.1 - 6.2 mi

Top 82%
×5story building
+79ft-138ft

Overall

21740

Females

8684

F40-44

8684

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

21198

Females

8341

F40-44

8341

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

22481

Females

9073

F40-44

9073

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

23904

Females

9860

F40-44

9860

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

22515

Females

9123

F40-44

9123

25K→30K

15.5 - 18.6 mi

Top 84%
×9story building
+181ft-148ft

Overall

22448

Females

9154

F40-44

9154

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

22717

Females

9372

F40-44

9372

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

21073

Females

8501

F40-44

8501

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

22289

Females

9207

F40-44

9207

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

22015

Females

9081

F40-44

9081

23M→24M

23.0 - 24.0 mi

Top 84%
×6story building
+12ft-82ft

Overall

22461

Females

9344

F40-44

9344

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

22022

Females

9161

F40-44

9161

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21286

Females

8749

F40-44

8749

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2story building
+22ft-21ft

Overall

21706

Females

8961

F40-44

8961

Passing Analysis

Category:
Athletes Passed
911
Passed By
1865
Net Change
-954
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21095
5K → 10K158462-304#21095#21399
10K → 15K197123+74#21399#21325
15K → 20K37384-347#21325#21672
20K → Half5142-137#21672#21809
Half → 25K60196-136#21809#21945
25K → 30K103225-122#21945#22067
30K → 20M48109-61#22067#22128
20M → 21M8425+59#22128#22069
21M → 35K2132-11#22069#22080
35K → 23M5543+12#22080#22068
23M → 24M3846-8#22068#22076
24M → 40K4138+3#22076#22073
40K → 25.2M2313+10#22073#22063
25.2M → Finish4127+14#22063#22049
TOTALS9111865-954
📊

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