Boston Marathon logo
BOSTON MARATHON 2023

April Jelinek

Bib: 16414•F

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 36%
Gender (Female)
#0 / 11423
Top 17%
Division (F18-39)
#0 / 4884
Top 30%
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
7:42/mi
23:54
↑ 97↓ 3451.5%
10K· 6.21 mi
7:40/mi
47:43
↑ 79↓ 1380.4%
15K· 9.32 mi
7:49/mi
1:11:59
↑ 67↓ 78
20K· 12.43 mi
7:54/mi
1:36:32
↑ 106↓ 860.1%
Half· 13.11 mi
7:39/mi
1:41:45
↑ 19↓ 370.5%
25K· 15.53 mi
7:49/mi
2:00:41
↑ 66↓ 880.2%
30K· 18.64 mi
7:51/mi
2:25:03
↑ 181↓ 1480.2%
20M
7:44/mi
2:35:33
↑ 64↓ 500.2%
21M
8:04/mi
2:43:37
↑ 106↓ 241.6%
35K· 21.75 mi
7:12/mi
2:49:00
↑ 17↓ 861.7%
23M
7:23/mi
2:58:15
↑ 23↓ 630.6%
24M
7:21/mi
3:05:36
↓ 821.3%
40K· 24.85 mi
7:17/mi
3:11:50
↓ 200.3%
25.2M
7:56/mi
3:14:34
↑ 13↓ 160.2%
Finish· 26.22 mi
6:52/mi
3:21:34
↑ 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 Half
Distance13.11 mi
Time1:41:45
Pace7:46 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:39:49
Pace7:37 /mi
📊Negative Split: 1.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:0523:547:4223:54
7:42
-
10K
6.21 mi11:37:5447:437:4123:49
7:40
-0:02
15K
9.32 mi12:02:101:11:597:4324:16
7:49
+0:09
20K
12.43 mi12:26:431:36:327:4624:33
7:54
+0:05
Half
13.11 mi12:31:561:41:457:465:13
7:39
-0:15
25K
15.53 mi12:50:522:00:417:4618:56
7:49
+0:10
30K
18.64 mi13:15:142:25:037:4724:22
7:51
+0:02
20M
20.00 mi13:25:442:35:337:4710:30
7:44
-0:07
21M
21.00 mi13:33:482:43:377:478:04
8:04
+0:20
35K
21.75 mi13:39:112:49:007:465:23
7:12
-0:52
23M
23.00 mi13:48:262:58:157:459:15
7:23
+0:11
24M
24.00 mi13:55:473:05:367:447:21
7:21
-0:02
40K
24.85 mi14:02:013:11:507:436:14
7:17
-0:04
25.2M
25.20 mi14:04:453:14:347:432:44
7:56
+0:39
Finish
26.22 mi14:11:453:21:347:427:00
6:52
-1:04

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

6:52 /mi

Average Pace

7:42 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

35:13

17% of race

Time at Steady Pace

2:46:21

83% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:41 /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 mi11:14:0523:547:4223:54
7:42
#11384
10K
6.21 mi11:37:5447:437:4123:49
7:40
#11616
15K
9.32 mi12:02:101:11:597:4324:16
7:49
#11987
20K
12.43 mi12:26:431:36:327:4624:33
7:54
#12101
Half
13.11 mi12:31:561:41:457:465:13
7:39
#12073
25K
15.53 mi12:50:522:00:417:4618:56
7:49
#11897
30K
18.64 mi13:15:142:25:037:4724:22
7:51
#11458
20M
20.00 mi13:25:442:35:337:4710:30
7:44
#11167
21M
21.00 mi13:33:482:43:377:478:04
8:04
#10940
35K
21.75 mi13:39:112:49:007:465:23
7:12
#10748
23M
23.00 mi13:48:262:58:157:459:15
7:23
#10399
24M
24.00 mi13:55:473:05:367:447:21
7:21
#10206
40K
24.85 mi14:02:013:11:507:436:14
7:17
#9980
25.2M
25.20 mi14:04:453:14:347:432:44
7:56
#9893
Finish
26.22 mi14:11:453:21:347:427:00
6:52
#9604
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi113842527252712820(Top 48%)3353(Top 29%)3353(Top 69%)
10K6.21 mi3.10 mi11616-2322659-1322659-13211947(Top 45%)2834(Top 25%)2834(Top 58%)
15K9.32 mi3.11 mi11987-3712884-2252884-22512820(Top 48%)3353(Top 29%)3353(Top 69%)
20K12.43 mi3.11 mi12101-1142974-902974-9012635(Top 47%)3337(Top 29%)3337(Top 68%)
Half13.11 mi0.68 mi12073+282961+132961+1311423(Top 43%)2564(Top 22%)2564(Top 52%)
25K15.53 mi2.42 mi11897+1762875+862875+8611162(Top 42%)2564(Top 22%)2564(Top 52%)
30K18.64 mi3.11 mi11458+4392668+2072668+2079692(Top 36%)2015(Top 18%)2015(Top 41%)
20M20.00 mi1.36 mi11167+2912526+1422526+1428396(Top 32%)1560(Top 14%)1560(Top 32%)
21M21.00 mi1.00 mi10940+2272431+952431+957835(Top 29%)1450(Top 13%)1450(Top 30%)
35K21.75 mi0.75 mi10748+1922351+802351+806559(Top 25%)952(Top 8%)952(Top 19%)
23M23.00 mi1.25 mi10399+3492196+1552196+1555828(Top 22%)769(Top 7%)769(Top 16%)
24M24.00 mi1.00 mi10206+1932125+712125+716773(Top 25%)1195(Top 10%)1195(Top 24%)
40K24.85 mi0.85 mi9980+2262051+742051+745450(Top 20%)805(Top 7%)805(Top 16%)
25.2M25.20 mi0.35 mi9893+872025+262025+266180(Top 23%)1130(Top 10%)1130(Top 23%)
Finish26.22 mi1.02 mi9604+2891918+1071918+1074493(Top 17%)586(Top 5%)586(Top 12%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

12820

Females

3353

F18-39

3353

5K→10K

3.1 - 6.2 mi

Top 45%
×5story building
+79ft-138ft

Overall

11947

Females

2834

F18-39

2834

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

12820

Females

3353

F18-39

3353

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

12635

Females

3337

F18-39

3337

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

11423

Females

2564

F18-39

2564

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

11162

Females

2564

F18-39

2564

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

9692

Females

2015

F18-39

2015

30K→20M

18.6 - 20.0 mi

Top 32%
×5story building
+64ft-50ft

Overall

8396

Females

1560

F18-39

1560

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

7835

Females

1450

F18-39

1450

21M→35K

21.0 - 21.8 mi

Top 25%
×7story building
+17ft-86ft

Overall

6559

Females

952

F18-39

952

35K→23M

21.8 - 23.0 mi

Top 22%
×5story building
+23ft-63ft

Overall

5828

Females

769

F18-39

769

23M→24M

23.0 - 24.0 mi

Top 25%
×6story building
+12ft-82ft

Overall

6773

Females

1195

F18-39

1195

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5450

Females

805

F18-39

805

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6180

Females

1130

F18-39

1130

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2story building
+22ft-21ft

Overall

4493

Females

586

F18-39

586

Passing Analysis

Category:
Athletes Passed
3018*
Passed By
1238
Net Change
+1780
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11384
5K → 10K208440-232#11384#11616
10K → 15K80451-371#11616#11987
15K → 20K131245-114#11987#12101
20K → Half4820+28#12101#12073
Half → 25K22044+176#12073#11897
25K → 30K45920+439#11897#11458
30K → 20M2932+291#11458#11167
20M → 21M2314+227#11167#10940
21M → 35K1931+192#10940#10748
35K → 23M3501+349#10748#10399
23M → 24M1963+193#10399#10206
24M → 40K227*1+226#10206#9980
40K → 25.2M903+87#9980#9893
25.2M → Finish292*3+289#9893#9604
TOTALS3018*1238+1780

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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