Boston Marathon logo
BOSTON MARATHON 2025

Jirka Myers

Bib: 23106•F

CO

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
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
8:16/mi
25:40
↑ 97↓ 3451.5%
10K· 6.21 mi
8:30/mi
52:03
↑ 79↓ 1380.4%
15K· 9.32 mi
9:10/mi
1:20:32
↑ 67↓ 78
20K· 12.43 mi
9:02/mi
1:48:37
↑ 106↓ 860.1%
Half· 13.11 mi
8:40/mi
1:54:32
↑ 19↓ 370.5%
25K· 15.53 mi
9:19/mi
2:17:08
↑ 66↓ 880.2%
30K· 18.64 mi
10:04/mi
2:48:26
↑ 181↓ 1480.2%
20M
10:08/mi
3:02:12
↑ 64↓ 500.2%
21M
12:09/mi
3:14:21
↑ 106↓ 241.6%
35K· 21.75 mi
9:49/mi
3:21:42
↑ 17↓ 861.7%
23M
10:26/mi
3:34:46
↑ 23↓ 630.6%
24M
10:17/mi
3:45:03
↓ 821.3%
40K· 24.85 mi
11:20/mi
3:54:44
↓ 200.3%
25.2M
10:55/mi
3:58:30
↑ 13↓ 160.2%
Finish· 26.22 mi
8:51/mi
4:07:31
↑ 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
Time1:54:32
Pace8:44 /mi
2nd Half
Distance13.11 mi
Time2:12:59
Pace10:09 /mi
📊Positive Split: 16.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:4325:408:1625:40
8:16
-
10K
6.21 mi11:48:0652:038:2326:23
8:30
+0:14
15K
9.32 mi12:16:351:20:328:3828:29
9:10
+0:40
20K
12.43 mi12:44:401:48:378:4428:05
9:02
-0:08
Half
13.11 mi12:50:351:54:328:445:55
8:40
-0:22
25K
15.53 mi13:13:112:17:088:5022:36
9:19
+0:39
30K
18.64 mi13:44:292:48:269:0231:18
10:04
+0:45
20M
20.00 mi13:58:153:02:129:0713:46
10:08
+0:04
21M
21.00 mi14:10:243:14:219:1512:09
12:09
+2:01
35K
21.75 mi14:17:453:21:429:167:21
9:49
-2:20
23M
23.00 mi14:30:493:34:469:2013:04
10:26
+0:37
24M
24.00 mi14:41:063:45:039:2310:17
10:17
-0:09
40K
24.85 mi14:50:473:54:449:279:41
11:20
+1:03
25.2M
25.20 mi14:54:333:58:309:283:46
10:55
-0:25
Finish
26.22 mi15:03:344:07:319:279:01
8:51
-2:04

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

8:16 /mi

Average Pace

9:27 /mi

Slowest Pace

12:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:33

50% of race

Time at Steady Pace

1:25:18

34% of race

Time at Slower Pace

38:40

16% of race

Average Pace: 9:26 /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 mi11:21:4325:408:1625:40
8:16
#18494
10K
6.21 mi11:48:0652:038:2326:23
8:30
#19111
15K
9.32 mi12:16:351:20:328:3828:29
9:10
#20422
20K
12.43 mi12:44:401:48:378:4428:05
9:02
#20636
Half
13.11 mi12:50:351:54:328:445:55
8:40
#20605
25K
15.53 mi13:13:112:17:088:5022:36
9:19
#20759
30K
18.64 mi13:44:292:48:269:0231:18
10:04
#21042
20M
20.00 mi13:58:153:02:129:0713:46
10:08
#21076
21M
21.00 mi14:10:243:14:219:1512:09
12:09
#21340
35K
21.75 mi14:17:453:21:429:167:21
9:49
#21350
23M
23.00 mi14:30:493:34:469:2013:04
10:26
#21380
24M
24.00 mi14:41:063:45:039:2310:17
10:17
#21419
40K
24.85 mi14:50:473:54:449:279:41
11:20
#21546
25.2M
25.20 mi14:54:333:58:309:283:46
10:55
#21522
Finish
26.22 mi15:03:344:07:319:279:01
8:51
#21406
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi184946629662922744(Top 80%)8970(Top 73%)8970(Top 495%)
10K6.21 mi3.10 mi19111-6176966-3376966-33719759(Top 70%)7339(Top 60%)7339(Top 405%)
15K9.32 mi3.11 mi20422-13117714-7487714-74822744(Top 80%)8970(Top 73%)8970(Top 495%)
20K12.43 mi3.11 mi20636-2147837-1237837-12321183(Top 75%)8152(Top 67%)8152(Top 450%)
Half13.11 mi0.68 mi20605+317818+197818+1920270(Top 71%)7643(Top 63%)7643(Top 422%)
25K15.53 mi2.42 mi20759-1547910-927910-9221275(Top 75%)8251(Top 67%)8251(Top 455%)
30K18.64 mi3.11 mi21042-2838110-2008110-20021810(Top 77%)8674(Top 71%)8674(Top 478%)
20M20.00 mi1.36 mi21076-348148-388148-3821391(Top 75%)8569(Top 70%)8569(Top 473%)
21M21.00 mi1.00 mi21340-2648304-1568304-15623851(Top 84%)9946(Top 81%)9946(Top 549%)
35K21.75 mi0.75 mi21350-108320-168320-1621410(Top 75%)8725(Top 71%)8725(Top 481%)
23M23.00 mi1.25 mi21380-308368-488368-4821846(Top 77%)8985(Top 73%)8985(Top 496%)
24M24.00 mi1.00 mi21419-398402-348402-3422201(Top 78%)9234(Top 76%)9234(Top 509%)
40K24.85 mi0.85 mi21546-1278499-978499-9723822(Top 84%)10085(Top 82%)10085(Top 556%)
25.2M25.20 mi0.35 mi21522+248493+68493+620428(Top 72%)8376(Top 68%)8376(Top 462%)
Finish26.22 mi1.02 mi21406+1168448+458448+4518321(Top 65%)7259(Top 59%)7259(Top 400%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

22744

Females

8970

F45-49

8970

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

19759

Females

7339

F45-49

7339

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

22744

Females

8970

F45-49

8970

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

21183

Females

8152

F45-49

8152

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

20270

Females

7643

F45-49

7643

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

21275

Females

8251

F45-49

8251

25K→30K

15.5 - 18.6 mi

Top 77%
×9story building
+181ft-148ft

Overall

21810

Females

8674

F45-49

8674

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

21391

Females

8569

F45-49

8569

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

23851

Females

9946

F45-49

9946

21M→35K

21.0 - 21.8 mi

Top 75%
×7story building
+17ft-86ft

Overall

21410

Females

8725

F45-49

8725

35K→23M

21.8 - 23.0 mi

Top 77%
×5story building
+23ft-63ft

Overall

21846

Females

8985

F45-49

8985

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

22201

Females

9234

F45-49

9234

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

23822

Females

10085

F45-49

10085

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20428

Females

8376

F45-49

8376

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2story building
+22ft-21ft

Overall

18321

Females

7259

F45-49

7259

Passing Analysis

Category:
Athletes Passed
991
Passed By
3903
Net Change
-2912
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18494
5K → 10K86703-617#18494#19111
10K → 15K221333-1311#19111#20422
15K → 20K121335-214#20422#20636
20K → Half5019+31#20636#20605
Half → 25K109263-154#20605#20759
25K → 30K125408-283#20759#21042
30K → 20M89123-34#21042#21076
20M → 21M32296-264#21076#21340
21M → 35K4555-10#21340#21350
35K → 23M86116-30#21350#21380
23M → 24M4584-39#21380#21419
24M → 40K22149-127#21419#21546
40K → 25.2M328+24#21546#21522
25.2M → Finish12711+116#21522#21406
TOTALS9913903-2912
📊

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