Boston Marathon logo
BOSTON MARATHON 2025

Justyna Majewska-Bogdanska

Bib: 18718•F

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 38%
Gender (Female)
#0 / 12228
Top 21%
Division (F18-39)
#0 / 5469
Top 37%
Race Day Weather
50°/40°F
broken 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
7:25/mi
23:02
↑ 97↓ 3451.5%
10K· 6.21 mi
7:10/mi
45:19
↑ 79↓ 1380.4%
15K· 9.32 mi
7:19/mi
1:08:03
↑ 67↓ 78
20K· 12.43 mi
7:32/mi
1:31:28
↑ 106↓ 860.1%
Half· 13.11 mi
7:17/mi
1:36:26
↑ 19↓ 370.5%
25K· 15.53 mi
7:38/mi
1:54:56
↑ 66↓ 880.2%
30K· 18.64 mi
7:56/mi
2:19:36
↑ 181↓ 1480.2%
20M
8:08/mi
2:30:39
↑ 64↓ 500.2%
21M
8:52/mi
2:39:31
↑ 106↓ 241.6%
35K· 21.75 mi
7:42/mi
2:45:17
↑ 17↓ 861.7%
23M
8:17/mi
2:55:39
↑ 23↓ 630.6%
24M
8:01/mi
3:03:40
↓ 821.3%
40K· 24.85 mi
8:08/mi
3:10:37
↓ 200.3%
25.2M
9:05/mi
3:13:45
↑ 13↓ 160.2%
Finish· 26.22 mi
8:15/mi
3:22:09
↑ 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
Time1:36:26
Pace7:21 /mi
2nd Half
Distance13.11 mi
Time1:45:43
Pace8:04 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:1923:027:2523:02
7:25
-
10K
6.21 mi11:36:3645:197:1822:17
7:10
-0:15
15K
9.32 mi11:59:201:08:037:1822:44
7:19
+0:09
20K
12.43 mi12:22:451:31:287:2223:25
7:32
+0:13
Half
13.11 mi12:27:431:36:267:214:58
7:17
-0:15
25K
15.53 mi12:46:131:54:567:2418:30
7:38
+0:21
30K
18.64 mi13:10:532:19:367:2924:40
7:56
+0:18
20M
20.00 mi13:21:562:30:397:3211:03
8:08
+0:12
21M
21.00 mi13:30:482:39:317:368:52
8:52
+0:44
35K
21.75 mi13:36:342:45:177:365:46
7:42
-1:10
23M
23.00 mi13:46:562:55:397:3810:22
8:17
+0:35
24M
24.00 mi13:54:573:03:407:398:01
8:01
-0:16
40K
24.85 mi14:01:543:10:377:406:57
8:08
+0:07
25.2M
25.20 mi14:05:023:13:457:413:08
9:05
+0:57
Finish
26.22 mi14:13:263:22:097:438:24
8:15
-0:50

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

7:10 /mi

Average Pace

7:43 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:56

57% of race

Time at Steady Pace

56:27

28% of race

Time at Slower Pace

30:46

15% of race

Average Pace: 7:43 /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 mi11:14:1923:027:2523:02
7:25
#11482
10K
6.21 mi11:36:3645:197:1822:17
7:10
#10289
15K
9.32 mi11:59:201:08:037:1822:44
7:19
#10215
20K
12.43 mi12:22:451:31:287:2223:25
7:32
#10404
Half
13.11 mi12:27:431:36:267:214:58
7:17
#10360
25K
15.53 mi12:46:131:54:567:2418:30
7:38
#10445
30K
18.64 mi13:10:532:19:367:2924:40
7:56
#10487
20M
20.00 mi13:21:562:30:397:3211:03
8:08
#10544
21M
21.00 mi13:30:482:39:317:368:52
8:52
#10648
35K
21.75 mi13:36:342:45:177:365:46
7:42
#10608
23M
23.00 mi13:46:562:55:397:3810:22
8:17
#10643
24M
24.00 mi13:54:573:03:407:398:01
8:01
#10645
40K
24.85 mi14:01:543:10:377:406:57
8:08
#10633
25.2M
25.20 mi14:05:023:13:457:413:08
9:05
#10645
Finish
26.22 mi14:13:263:22:097:438:24
8:15
#10776
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi114822522252210142(Top 36%)1950(Top 16%)1950(Top 36%)
10K6.21 mi3.10 mi10289+11931953+5691953+5699279(Top 33%)1504(Top 12%)1504(Top 28%)
15K9.32 mi3.11 mi10215+741939+141939+1410142(Top 36%)1950(Top 16%)1950(Top 36%)
20K12.43 mi3.11 mi10404-1892059-1202059-12011088(Top 39%)2519(Top 21%)2519(Top 46%)
Half13.11 mi0.68 mi10360+442047+122047+129915(Top 35%)1931(Top 16%)1931(Top 35%)
25K15.53 mi2.42 mi10445-852105-582105-5811000(Top 39%)2589(Top 21%)2589(Top 47%)
30K18.64 mi3.11 mi10487-422201-962201-9610955(Top 39%)2756(Top 23%)2756(Top 50%)
20M20.00 mi1.36 mi10544-572276-752276-7511351(Top 40%)3105(Top 25%)3105(Top 57%)
21M21.00 mi1.00 mi10648-1042369-932369-9312716(Top 45%)3977(Top 33%)3977(Top 73%)
35K21.75 mi0.75 mi10608+402362+72362+710173(Top 36%)2691(Top 22%)2691(Top 49%)
23M23.00 mi1.25 mi10643-352425-632425-6311926(Top 42%)3693(Top 30%)3693(Top 68%)
24M24.00 mi1.00 mi10645-22469-442469-4411372(Top 40%)3495(Top 29%)3495(Top 64%)
40K24.85 mi0.85 mi10633+122485-162485-1611103(Top 39%)3448(Top 28%)3448(Top 63%)
25.2M25.20 mi0.35 mi10645-122511-262511-2612301(Top 43%)4100(Top 34%)4100(Top 75%)
Finish26.22 mi1.02 mi10776-1312620-1092620-10914557(Top 51%)5225(Top 43%)5225(Top 96%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21story building
+97ft-345ft

Overall

10142

Females

1950

F18-39

1950

5K→10K

3.1 - 6.2 mi

Top 33%
×5story building
+79ft-138ft

Overall

9279

Females

1504

F18-39

1504

10K→15K

6.2 - 9.3 mi

Top 36%
×3story building
+67ft-78ft

Overall

10142

Females

1950

F18-39

1950

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

11088

Females

2519

F18-39

2519

20K→Half

12.4 - 13.1 mi

Top 35%
×2story building
+19ft-37ft

Overall

9915

Females

1931

F18-39

1931

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

11000

Females

2589

F18-39

2589

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

10955

Females

2756

F18-39

2756

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

11351

Females

3105

F18-39

3105

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

12716

Females

3977

F18-39

3977

21M→35K

21.0 - 21.8 mi

Top 36%
×7story building
+17ft-86ft

Overall

10173

Females

2691

F18-39

2691

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11926

Females

3693

F18-39

3693

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

11372

Females

3495

F18-39

3495

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

11103

Females

3448

F18-39

3448

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

12301

Females

4100

F18-39

4100

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

14557

Females

5225

F18-39

5225

Passing Analysis

Category:
Athletes Passed
2513
Passed By
1805
Net Change
+706
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11482
5K → 10K121522+1193#11482#10289
10K → 15K202128+74#10289#10215
15K → 20K121309-189#10215#10404
20K → Half528+44#10404#10360
Half → 25K135220-85#10360#10445
25K → 30K217258-42#10445#10487
30K → 20M101158-57#10487#10544
20M → 21M76180-104#10544#10648
21M → 35K7131+40#10648#10608
35K → 23M101136-35#10608#10643
23M → 24M7274-2#10643#10645
24M → 40K7563+12#10645#10633
40K → 25.2M3951-12#10633#10645
25.2M → Finish36167-131#10645#10776
TOTALS25131805+706
📊

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