Boston Marathon logo
BOSTON MARATHON 2023

Kara Parhiala

Bib: 27402•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
8:11/mi
25:26
↑ 97↓ 3451.5%
10K· 6.21 mi
8:47/mi
52:42
↑ 79↓ 1380.4%
15K· 9.32 mi
9:26/mi
1:22:01
↑ 67↓ 78
20K· 12.43 mi
9:30/mi
1:51:32
↑ 106↓ 860.1%
Half· 13.11 mi
9:16/mi
1:57:51
↑ 19↓ 370.5%
25K· 15.53 mi
9:34/mi
2:21:03
↑ 66↓ 880.2%
30K· 18.64 mi
10:29/mi
2:53:36
↑ 181↓ 1480.2%
20M
11:07/mi
3:08:42
↑ 64↓ 500.2%
21M
11:51/mi
3:20:33
↑ 106↓ 241.6%
35K· 21.75 mi
10:07/mi
3:28:07
↑ 17↓ 861.7%
23M
10:37/mi
3:41:24
↑ 23↓ 630.6%
24M
10:39/mi
3:52:03
↓ 821.3%
40K· 24.85 mi
11:08/mi
4:01:34
↓ 200.3%
25.2M
12:05/mi
4:05:44
↑ 13↓ 160.2%
Finish· 26.22 mi
9:47/mi
4:15:42
↑ 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
Time1:57:51
Pace8:59 /mi
2nd Half
Distance13.11 mi
Time2:17:51
Pace10:31 /mi
📊Positive Split: 17.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:2125:268:1125:26
8:11
-
10K
6.21 mi12:08:3752:428:2927:16
8:47
+0:36
15K
9.32 mi12:37:561:22:018:4829:19
9:26
+0:39
20K
12.43 mi13:07:271:51:328:5829:31
9:30
+0:04
Half
13.11 mi13:13:461:57:518:596:19
9:16
-0:14
25K
15.53 mi13:36:582:21:039:0523:12
9:34
+0:18
30K
18.64 mi14:09:312:53:369:1932:33
10:29
+0:55
20M
20.00 mi14:24:373:08:429:2615:06
11:07
+0:38
21M
21.00 mi14:36:283:20:339:3311:51
11:51
+0:44
35K
21.75 mi14:44:023:28:079:347:34
10:07
-1:44
23M
23.00 mi14:57:193:41:249:3813:17
10:37
+0:30
24M
24.00 mi15:07:583:52:039:4010:39
10:39
+0:02
40K
24.85 mi15:17:294:01:349:439:31
11:08
+0:29
25.2M
25.20 mi15:21:394:05:449:454:10
12:05
+0:57
Finish
26.22 mi15:31:374:15:429:469:58
9:47
-2:18

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

8:11 /mi

Average Pace

9:46 /mi

Slowest Pace

12:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21:03

55% of race

Time at Steady Pace

1:03:22

25% of race

Time at Slower Pace

51:17

20% of race

Average Pace: 9:45 /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 mi11:41:2125:268:1125:26
8:11
#15387
10K
6.21 mi12:08:3752:428:2927:16
8:47
#17802
15K
9.32 mi12:37:561:22:018:4829:19
9:26
#19612
20K
12.43 mi13:07:271:51:328:5829:31
9:30
#20250
Half
13.11 mi13:13:461:57:518:596:19
9:16
#20317
25K
15.53 mi13:36:582:21:039:0523:12
9:34
#20476
30K
18.64 mi14:09:312:53:369:1932:33
10:29
#20877
20M
20.00 mi14:24:373:08:429:2615:06
11:07
#21078
21M
21.00 mi14:36:283:20:339:3311:51
11:51
#21197
35K
21.75 mi14:44:023:28:079:347:34
10:07
#21195
23M
23.00 mi14:57:193:41:249:3813:17
10:37
#21210
24M
24.00 mi15:07:583:52:039:4010:39
10:39
#21277
40K
24.85 mi15:17:294:01:349:439:31
11:08
#21338
25.2M
25.20 mi15:21:394:05:449:454:10
12:05
#21360
Finish
26.22 mi15:31:374:15:429:469:58
9:47
#21346
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi153874896489622079(Top 83%)8835(Top 77%)8835(Top 181%)
10K6.21 mi3.10 mi17802-24156406-15106406-151019825(Top 74%)7598(Top 67%)7598(Top 156%)
15K9.32 mi3.11 mi19612-18107521-11157521-111522079(Top 83%)8835(Top 77%)8835(Top 181%)
20K12.43 mi3.11 mi20250-6387864-3437864-34321565(Top 81%)8558(Top 75%)8558(Top 175%)
Half13.11 mi0.68 mi20317-677898-347898-3421403(Top 80%)8475(Top 74%)8475(Top 174%)
25K15.53 mi2.42 mi20476-1597969-717969-7121066(Top 79%)8305(Top 73%)8305(Top 170%)
30K18.64 mi3.11 mi20877-4018201-2328201-23222167(Top 83%)8992(Top 79%)8992(Top 184%)
20M20.00 mi1.36 mi21078-2018343-1428343-14222899(Top 86%)9461(Top 83%)9461(Top 194%)
21M21.00 mi1.00 mi21197-1198422-798422-7922514(Top 85%)9288(Top 81%)9288(Top 190%)
35K21.75 mi0.75 mi21195+28433-118433-1121618(Top 81%)8842(Top 77%)8842(Top 181%)
23M23.00 mi1.25 mi21210-158450-178450-1721596(Top 81%)8851(Top 77%)8851(Top 181%)
24M24.00 mi1.00 mi21277-678496-468496-4622361(Top 84%)9298(Top 81%)9298(Top 190%)
40K24.85 mi0.85 mi21338-618534-388534-3822631(Top 85%)9471(Top 83%)9471(Top 194%)
25.2M25.20 mi0.35 mi21360-228551-178551-1722689(Top 85%)9506(Top 83%)9506(Top 195%)
Finish26.22 mi1.02 mi21346+148553-28553-221117(Top 79%)8625(Top 76%)8625(Top 177%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

22079

Females

8835

F18-39

8835

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

19825

Females

7598

F18-39

7598

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

22079

Females

8835

F18-39

8835

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

21565

Females

8558

F18-39

8558

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

21403

Females

8475

F18-39

8475

Half→25K

13.1 - 15.5 mi

Top 79%
×4story building
+66ft-88ft

Overall

21066

Females

8305

F18-39

8305

25K→30K

15.5 - 18.6 mi

Top 83%
×9story building
+181ft-148ft

Overall

22167

Females

8992

F18-39

8992

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

22899

Females

9461

F18-39

9461

20M→21M

20.0 - 21.0 mi

Top 85%
×8story building
+106ft-24ft

Overall

22514

Females

9288

F18-39

9288

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

21618

Females

8842

F18-39

8842

35K→23M

21.8 - 23.0 mi

Top 81%
×5story building
+23ft-63ft

Overall

21596

Females

8851

F18-39

8851

23M→24M

23.0 - 24.0 mi

Top 84%
×6story building
+12ft-82ft

Overall

22361

Females

9298

F18-39

9298

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

22631

Females

9471

F18-39

9471

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

22689

Females

9506

F18-39

9506

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2story building
+22ft-21ft

Overall

21117

Females

8625

F18-39

8625

Passing Analysis

Category:
Athletes Passed
451
Passed By
6410
Net Change
-5959
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15387
5K → 10K102425-2415#15387#17802
10K → 15K61816-1810#17802#19612
15K → 20K49687-638#19612#20250
20K → Half1279-67#20250#20317
Half → 25K59218-159#20317#20476
25K → 30K56457-401#20476#20877
30K → 20M30231-201#20877#21078
20M → 21M27146-119#21078#21197
21M → 35K3634+2#21197#21195
35K → 23M6277-15#21195#21210
23M → 24M2390-67#21210#21277
24M → 40K2283-61#21277#21338
40K → 25.2M1739-22#21338#21360
25.2M → Finish4228+14#21360#21346
TOTALS4516410-5959
📊

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