Boston Marathon logo
BOSTON MARATHON 2023

Parker Thomas

Bib: 26208•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
11:29/mi
35:42
↑ 97↓ 3451.5%
10K· 6.21 mi
12:02/mi
1:13:04
↑ 79↓ 1380.4%
15K· 9.32 mi
13:36/mi
1:55:18
↑ 67↓ 78
20K· 12.43 mi
13:20/mi
2:36:43
↑ 106↓ 860.1%
Half· 13.11 mi
13:42/mi
2:46:04
↑ 19↓ 370.5%
25K· 15.53 mi
14:47/mi
3:21:55
↑ 66↓ 880.2%
30K· 18.64 mi
14:41/mi
4:07:31
↑ 181↓ 1480.2%
20M
14:37/mi
4:27:23
↑ 64↓ 500.2%
21M
17:51/mi
4:45:14
↑ 106↓ 241.6%
35K· 21.75 mi
14:34/mi
4:56:08
↑ 17↓ 861.7%
23M
14:56/mi
5:14:50
↑ 23↓ 630.6%
24M
14:58/mi
5:29:48
↓ 821.3%
40K· 24.85 mi
14:55/mi
5:42:33
↓ 200.3%
25.2M
17:12/mi
5:48:29
↑ 13↓ 160.2%
Finish· 26.22 mi
14:00/mi
6:02:45
↑ 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
Time2:46:04
Pace12:40 /mi
2nd Half
Distance13.11 mi
Time3:16:41
Pace15:00 /mi
📊Positive Split: 18.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:57:5135:4211:2935:42
11:29
-
10K
6.21 mi12:35:131:13:0411:4637:22
12:02
+0:33
15K
9.32 mi13:17:271:55:1812:2242:14
13:36
+1:34
20K
12.43 mi13:58:522:36:4312:3741:25
13:20
-0:16
Half
13.11 mi14:08:132:46:0412:409:21
13:42
+0:22
25K
15.53 mi14:44:043:21:5513:0035:51
14:47
+1:05
30K
18.64 mi15:29:404:07:3113:1745:36
14:41
-0:06
20M
20.00 mi15:49:324:27:2313:2219:52
14:37
-0:04
21M
21.00 mi16:07:234:45:1413:3517:51
17:51
+3:14
35K
21.75 mi16:18:174:56:0813:3710:54
14:34
-3:17
23M
23.00 mi16:36:595:14:5013:4118:42
14:56
+0:22
24M
24.00 mi16:51:575:29:4813:4514:58
14:58
+0:02
40K
24.85 mi17:04:425:42:3313:4712:45
14:55
-0:03
25.2M
25.20 mi17:10:385:48:2913:505:56
17:12
+2:17
Finish
26.22 mi17:24:546:02:4513:5114:16
14:00
-3:12

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

11:29 /mi

Average Pace

13:51 /mi

Slowest Pace

17:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:04

46% of race

Time at Steady Pace

2:52:54

48% of race

Time at Slower Pace

23:47

7% of race

Average Pace: 13:50 /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 mi11:57:5135:4211:2935:42
11:29
#26201
10K
6.21 mi12:35:131:13:0411:4637:22
12:02
#26276
15K
9.32 mi13:17:271:55:1812:2242:14
13:36
#26448
20K
12.43 mi13:58:522:36:4312:3741:25
13:20
#26448
Half
13.11 mi14:08:132:46:0412:409:21
13:42
#26458
25K
15.53 mi14:44:043:21:5513:0035:51
14:47
#26499
30K
18.64 mi15:29:404:07:3113:1745:36
14:41
#26504
20M
20.00 mi15:49:324:27:2313:2219:52
14:37
#26501
21M
21.00 mi16:07:234:45:1413:3517:51
17:51
#26523
35K
21.75 mi16:18:174:56:0813:3710:54
14:34
#26521
23M
23.00 mi16:36:595:14:5013:4118:42
14:56
#26530
24M
24.00 mi16:51:575:29:4813:4514:58
14:58
#26542
40K
24.85 mi17:04:425:42:3313:4712:45
14:55
#26538
25.2M
25.20 mi17:10:385:48:2913:505:56
17:12
#26543
Finish
26.22 mi17:24:546:02:4513:5114:16
14:00
#26554
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26201111731117326580(Top 100%)11408(Top 100%)11408(Top 234%)
10K6.21 mi3.10 mi26276-7511211-3811211-3826292(Top 99%)11228(Top 98%)11228(Top 230%)
15K9.32 mi3.11 mi26448-17211327-11611327-11626580(Top 100%)11408(Top 100%)11408(Top 234%)
20K12.43 mi3.11 mi2644811324+311324+326365(Top 99%)11279(Top 99%)11279(Top 231%)
Half13.11 mi0.68 mi26458-1011332-811332-826497(Top 100%)11364(Top 99%)11364(Top 233%)
25K15.53 mi2.42 mi26499-4111362-3011362-3026521(Top 100%)11368(Top 100%)11368(Top 233%)
30K18.64 mi3.11 mi26504-511361+111361+126320(Top 99%)11266(Top 99%)11266(Top 231%)
20M20.00 mi1.36 mi26501+311358+311358+326161(Top 98%)11208(Top 98%)11208(Top 229%)
21M21.00 mi1.00 mi26523-2211370-1211370-1226540(Top 100%)11383(Top 100%)11383(Top 233%)
35K21.75 mi0.75 mi26521+2113701137026327(Top 99%)11292(Top 99%)11292(Top 231%)
23M23.00 mi1.25 mi26530-911377-711377-726271(Top 99%)11270(Top 99%)11270(Top 231%)
24M24.00 mi1.00 mi26542-1211382-511382-526380(Top 99%)11326(Top 99%)11326(Top 232%)
40K24.85 mi0.85 mi26538+411381+111381+126116(Top 98%)11228(Top 98%)11228(Top 230%)
25.2M25.20 mi0.35 mi26543-511385-411385-426408(Top 99%)11348(Top 99%)11348(Top 232%)
Finish26.22 mi1.02 mi26554-1111391-611391-626355(Top 99%)11333(Top 99%)11333(Top 232%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 100%
×21story building
+97ft-345ft

Overall

26580

Females

11408

F18-39

11408

5K→10K

3.1 - 6.2 mi

Top 99%
×5story building
+79ft-138ft

Overall

26292

Females

11228

F18-39

11228

10K→15K

6.2 - 9.3 mi

Top 100%
×3story building
+67ft-78ft

Overall

26580

Females

11408

F18-39

11408

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

26365

Females

11279

F18-39

11279

20K→Half

12.4 - 13.1 mi

Top 100%
×2story building
+19ft-37ft

Overall

26497

Females

11364

F18-39

11364

Half→25K

13.1 - 15.5 mi

Top 100%
×4story building
+66ft-88ft

Overall

26521

Females

11368

F18-39

11368

25K→30K

15.5 - 18.6 mi

Top 99%
×9story building
+181ft-148ft

Overall

26320

Females

11266

F18-39

11266

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

26161

Females

11208

F18-39

11208

20M→21M

20.0 - 21.0 mi

Top 100%
×8story building
+106ft-24ft

Overall

26540

Females

11383

F18-39

11383

21M→35K

21.0 - 21.8 mi

Top 99%
×7story building
+17ft-86ft

Overall

26327

Females

11292

F18-39

11292

35K→23M

21.8 - 23.0 mi

Top 99%
×5story building
+23ft-63ft

Overall

26271

Females

11270

F18-39

11270

23M→24M

23.0 - 24.0 mi

Top 99%
×6story building
+12ft-82ft

Overall

26380

Females

11326

F18-39

11326

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

26116

Females

11228

F18-39

11228

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

26408

Females

11348

F18-39

11348

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2story building
+22ft-21ft

Overall

26355

Females

11333

F18-39

11333

Passing Analysis

Category:
Athletes Passed
113
Passed By
466
Net Change
-353
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26201
5K → 10K30105-75#26201#26276
10K → 15K5177-172#26276#26448
15K → 20K31310#26448#26448
20K → Half010-10#26448#26458
Half → 25K647-41#26458#26499
25K → 30K1217-5#26499#26504
30K → 20M107+3#26504#26501
20M → 21M022-22#26501#26523
21M → 35K53+2#26523#26521
35K → 23M312-9#26521#26530
23M → 24M214-12#26530#26542
24M → 40K73+4#26542#26538
40K → 25.2M05-5#26538#26543
25.2M → Finish213-11#26543#26554
TOTALS113466-353
📊

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