Boston Marathon logo
BOSTON MARATHON 2024

Jess Bialas

Bib: 27825•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Gender (Female)
#0 / 10924
Division (F18-39)
#0 / 4660
Race Day Weather
55°/45°F
scattered clouds

⏱️ 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
8:56/mi
27:44
↑ 97↓ 3451.5%
10K· 6.21 mi
8:54/mi
55:22
↑ 79↓ 1380.4%
15K· 9.32 mi
9:02/mi
1:23:26
↑ 67↓ 78
20K· 12.43 mi
9:07/mi
1:51:45
↑ 106↓ 860.1%
Half· 13.11 mi
8:56/mi
1:57:51
↑ 19↓ 370.5%
25K· 15.53 mi
9:27/mi
2:20:46
↑ 66↓ 880.2%
30K· 18.64 mi
10:25/mi
2:53:08
↑ 181↓ 1480.2%
20M
10:29/mi
3:07:23
↑ 64↓ 500.2%
21M
11:57/mi
3:19:20
↑ 106↓ 241.6%
35K· 21.75 mi
10:24/mi
3:27:07
↑ 17↓ 861.7%
23M
11:06/mi
3:41:01
↑ 23↓ 630.6%
24M
10:32/mi
3:51:33
↓ 821.3%
40K· 24.85 mi
10:46/mi
4:00:45
↓ 200.3%
25.2M
11:50/mi
4:04:50
↑ 13↓ 160.2%
Finish· 26.22 mi
8:35/mi
4:13:35
↑ 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
Time2:15:44
Pace10:21 /mi
📊Positive Split: 15.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:4427:448:5627:44
8:56
-
10K
6.21 mi12:15:2255:228:5527:38
8:54
-0:02
15K
9.32 mi12:43:261:23:268:5728:04
9:02
+0:08
20K
12.43 mi13:11:451:51:459:0028:19
9:07
+0:05
Half
13.11 mi13:17:511:57:518:596:06
8:56
-0:11
25K
15.53 mi13:40:462:20:469:0422:55
9:27
+0:31
30K
18.64 mi14:13:082:53:089:1732:22
10:25
+0:58
20M
20.00 mi14:27:233:07:239:2214:15
10:29
+0:04
21M
21.00 mi14:39:203:19:209:3011:57
11:57
+1:28
35K
21.75 mi14:47:073:27:079:317:47
10:24
-1:33
23M
23.00 mi15:01:013:41:019:3713:54
11:06
+0:42
24M
24.00 mi15:11:333:51:339:3910:32
10:32
-0:34
40K
24.85 mi15:20:454:00:459:419:12
10:46
+0:14
25.2M
25.20 mi15:24:504:04:509:434:05
11:50
+1:04
Finish
26.22 mi15:33:354:13:359:418:45
8:35
-3:15

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

8:35 /mi

Average Pace

9:41 /mi

Slowest Pace

11:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:29:31

59% of race

Time at Steady Pace

1:14:08

29% of race

Time at Slower Pace

29:56

12% of race

Average Pace: 9:40 /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 mi11:47:4427:448:5627:44
8:56
#19790
10K
6.21 mi12:15:2255:228:5527:38
8:54
#19534
15K
9.32 mi12:43:261:23:268:5728:04
9:02
#19379
20K
12.43 mi13:11:451:51:459:0028:19
9:07
#18915
Half
13.11 mi13:17:511:57:518:596:06
8:56
#18872
25K
15.53 mi13:40:462:20:469:0422:55
9:27
#18585
30K
18.64 mi14:13:082:53:089:1732:22
10:25
#18599
20M
20.00 mi14:27:233:07:239:2214:15
10:29
#18560
21M
21.00 mi14:39:203:19:209:3011:57
11:57
#18561
35K
21.75 mi14:47:073:27:079:317:47
10:24
#18533
23M
23.00 mi15:01:013:41:019:3713:54
11:06
#18514
24M
24.00 mi15:11:333:51:339:3910:32
10:32
#18485
40K
24.85 mi15:20:454:00:459:419:12
10:46
#18438
25.2M
25.20 mi15:24:504:04:509:434:05
11:50
#18409
Finish
26.22 mi15:33:354:13:359:418:45
8:35
#18177
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi197907766776619060(Top 75%)7281(Top 67%)7281(Top 156%)
10K6.21 mi3.10 mi19534+2567607+1597607+15919319(Top 76%)7460(Top 68%)7460(Top 160%)
15K9.32 mi3.11 mi19379+1557503+1047503+10419060(Top 75%)7281(Top 67%)7281(Top 156%)
20K12.43 mi3.11 mi18915+4647237+2667237+26617838(Top 70%)6621(Top 61%)6621(Top 142%)
Half13.11 mi0.68 mi18872+437224+137224+1318031(Top 71%)6811(Top 62%)6811(Top 146%)
25K15.53 mi2.42 mi18585+2877086+1387086+13817388(Top 68%)6489(Top 59%)6489(Top 139%)
30K18.64 mi3.11 mi18599-147168-827168-8218575(Top 73%)7345(Top 67%)7345(Top 158%)
20M20.00 mi1.36 mi18560+397160+87160+817957(Top 70%)7186(Top 66%)7186(Top 154%)
21M21.00 mi1.00 mi18561-17183-237183-2318702(Top 73%)7673(Top 70%)7673(Top 165%)
35K21.75 mi0.75 mi18533+287184-17184-118313(Top 72%)7490(Top 69%)7490(Top 161%)
23M23.00 mi1.25 mi18514+197202-187202-1818708(Top 73%)7748(Top 71%)7748(Top 166%)
24M24.00 mi1.00 mi18485+297210-87210-817961(Top 70%)7446(Top 68%)7446(Top 160%)
40K24.85 mi0.85 mi18438+477196+147196+1417465(Top 68%)7254(Top 66%)7254(Top 156%)
25.2M25.20 mi0.35 mi18409+297194+27194+216988(Top 66%)7040(Top 64%)7040(Top 151%)
Finish26.22 mi1.02 mi18177+2327108+867108+8612032(Top 47%)4493(Top 41%)4493(Top 96%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

19060

Females

7281

F18-39

7281

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

19319

Females

7460

F18-39

7460

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

19060

Females

7281

F18-39

7281

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

17838

Females

6621

F18-39

6621

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

18031

Females

6811

F18-39

6811

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

17388

Females

6489

F18-39

6489

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

18575

Females

7345

F18-39

7345

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

17957

Females

7186

F18-39

7186

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

18702

Females

7673

F18-39

7673

21M→35K

21.0 - 21.8 mi

Top 72%
×7story building
+17ft-86ft

Overall

18313

Females

7490

F18-39

7490

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

18708

Females

7748

F18-39

7748

23M→24M

23.0 - 24.0 mi

Top 70%
×6story building
+12ft-82ft

Overall

17961

Females

7446

F18-39

7446

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

17465

Females

7254

F18-39

7254

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

16988

Females

7040

F18-39

7040

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

12032

Females

4493

F18-39

4493

Passing Analysis

Category:
Athletes Passed
2720
Passed By
1107
Net Change
+1613
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19790
5K → 10K405149+256#19790#19534
10K → 15K298143+155#19534#19379
15K → 20K51248+464#19379#18915
20K → Half6118+43#18915#18872
Half → 25K35770+287#18872#18585
25K → 30K239253-14#18585#18599
30K → 20M11475+39#18599#18560
20M → 21M9697-1#18560#18561
21M → 35K7446+28#18561#18533
35K → 23M124105+19#18533#18514
23M → 24M8152+29#18514#18485
24M → 40K8033+47#18485#18438
40K → 25.2M4617+29#18438#18409
25.2M → Finish2331+232#18409#18177
TOTALS27201107+1613
📊

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