Boston Marathon logo
BOSTON MARATHON 2025

Cathy Stoddard

Bib: 21194•F

MI

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 44%
Masters (Masters Women)
#0 / 6759
Top 31%
Division (F45-49)
#0 / 1813
Top 38%
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
8:02/mi
24:57
↑ 97↓ 3451.5%
10K· 6.21 mi
7:57/mi
49:40
↑ 79↓ 1380.4%
15K· 9.32 mi
7:52/mi
1:14:07
↑ 67↓ 78
20K· 12.43 mi
7:57/mi
1:38:50
↑ 106↓ 860.1%
Half· 13.11 mi
7:56/mi
1:44:15
↑ 19↓ 370.5%
25K· 15.53 mi
8:08/mi
2:03:57
↑ 66↓ 880.2%
30K· 18.64 mi
8:34/mi
2:30:34
↑ 181↓ 1480.2%
20M
8:41/mi
2:42:22
↑ 64↓ 500.2%
21M
9:49/mi
2:52:11
↑ 106↓ 241.6%
35K· 21.75 mi
9:13/mi
2:59:05
↑ 17↓ 861.7%
23M
9:00/mi
3:10:21
↑ 23↓ 630.6%
24M
9:16/mi
3:19:37
↓ 821.3%
40K· 24.85 mi
9:30/mi
3:27:44
↓ 200.3%
25.2M
9:31/mi
3:31:01
↑ 13↓ 160.2%
Finish· 26.22 mi
9:02/mi
3:40:13
↑ 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
Time1:44:15
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time1:55:58
Pace8:51 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:0224:578:0224:57
8:02
-
10K
6.21 mi11:46:4549:408:0024:43
7:57
-0:05
15K
9.32 mi12:11:121:14:077:5724:27
7:52
-0:05
20K
12.43 mi12:35:551:38:507:5724:43
7:57
+0:05
Half
13.11 mi12:41:201:44:157:575:25
7:56
-0:01
25K
15.53 mi13:01:022:03:577:5919:42
8:08
+0:12
30K
18.64 mi13:27:392:30:348:0526:37
8:34
+0:26
20M
20.00 mi13:39:272:42:228:0711:48
8:41
+0:07
21M
21.00 mi13:49:162:52:118:129:49
9:49
+1:08
35K
21.75 mi13:56:102:59:058:146:54
9:13
-0:36
23M
23.00 mi14:07:263:10:218:1711:16
9:00
-0:13
24M
24.00 mi14:16:423:19:378:199:16
9:16
+0:16
40K
24.85 mi14:24:493:27:448:218:07
9:30
+0:14
25.2M
25.20 mi14:28:063:31:018:223:17
9:31
+0:01
Finish
26.22 mi14:37:183:40:138:249:12
9:02
-0:29

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

7:52 /mi

Average Pace

8:24 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:57

56% of race

Time at Steady Pace

49:41

23% of race

Time at Slower Pace

46:35

21% of race

Average Pace: 8:24 /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 mi11:22:0224:578:0224:57
8:02
#16843
10K
6.21 mi11:46:4549:408:0024:43
7:57
#16459
15K
9.32 mi12:11:121:14:077:5724:27
7:52
#15935
20K
12.43 mi12:35:551:38:507:5724:43
7:57
#15575
Half
13.11 mi12:41:201:44:157:575:25
7:56
#15565
25K
15.53 mi13:01:022:03:577:5919:42
8:08
#15392
30K
18.64 mi13:27:392:30:348:0526:37
8:34
#15340
20M
20.00 mi13:39:272:42:228:0711:48
8:41
#15278
21M
21.00 mi13:49:162:52:118:129:49
9:49
#15387
35K
21.75 mi13:56:102:59:058:146:54
9:13
#15566
23M
23.00 mi14:07:263:10:218:1711:16
9:00
#15565
24M
24.00 mi14:16:423:19:378:199:16
9:16
#15678
40K
24.85 mi14:24:493:27:448:218:07
9:30
#15805
25.2M
25.20 mi14:28:063:31:018:223:17
9:31
#15771
Finish
26.22 mi14:37:183:40:138:249:12
9:02
#15920
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi168435652565215005(Top 53%)4585(Top 37%)4585(Top 253%)
10K6.21 mi3.10 mi16459+3845416+2365416+23616122(Top 57%)5193(Top 42%)5193(Top 286%)
15K9.32 mi3.11 mi15935+5245105+3115105+31115005(Top 53%)4585(Top 37%)4585(Top 253%)
20K12.43 mi3.11 mi15575+3604909+1964909+19614598(Top 51%)4431(Top 36%)4431(Top 244%)
Half13.11 mi0.68 mi15565+104906+34906+315508(Top 55%)4908(Top 40%)4908(Top 271%)
25K15.53 mi2.42 mi15392+1734828+784828+7814818(Top 52%)4657(Top 38%)4657(Top 257%)
30K18.64 mi3.11 mi15340+524849-214849-2115198(Top 54%)5017(Top 41%)5017(Top 277%)
20M20.00 mi1.36 mi15278+624852-34852-314976(Top 53%)5035(Top 41%)5035(Top 278%)
21M21.00 mi1.00 mi15387-1094944-924944-9217558(Top 62%)6557(Top 54%)6557(Top 362%)
35K21.75 mi0.75 mi15566-1795073-1295073-12919271(Top 68%)7580(Top 62%)7580(Top 418%)
23M23.00 mi1.25 mi15565+15108-355108-3516250(Top 57%)6024(Top 49%)6024(Top 332%)
24M24.00 mi1.00 mi15678-1135196-885196-8818674(Top 66%)7369(Top 60%)7369(Top 406%)
40K24.85 mi0.85 mi15805-1275293-975293-9718695(Top 66%)7471(Top 61%)7471(Top 412%)
25.2M25.20 mi0.35 mi15771+345287+65287+614749(Top 52%)5419(Top 44%)5419(Top 299%)
Finish26.22 mi1.02 mi15920-1495387-1005387-10019202(Top 68%)7718(Top 63%)7718(Top 426%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

15005

Females

4585

F45-49

4585

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

16122

Females

5193

F45-49

5193

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

15005

Females

4585

F45-49

4585

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

14598

Females

4431

F45-49

4431

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

15508

Females

4908

F45-49

4908

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

14818

Females

4657

F45-49

4657

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

15198

Females

5017

F45-49

5017

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

14976

Females

5035

F45-49

5035

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

17558

Females

6557

F45-49

6557

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

19271

Females

7580

F45-49

7580

35K→23M

21.8 - 23.0 mi

Top 57%
×5story building
+23ft-63ft

Overall

16250

Females

6024

F45-49

6024

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

18674

Females

7369

F45-49

7369

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18695

Females

7471

F45-49

7471

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

14749

Females

5419

F45-49

5419

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2story building
+22ft-21ft

Overall

19202

Females

7718

F45-49

7718

Passing Analysis

Category:
Athletes Passed
2561
Passed By
1638
Net Change
+923
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16843
5K → 10K525141+384#16843#16459
10K → 15K55632+524#16459#15935
15K → 20K41050+360#15935#15575
20K → Half4636+10#15575#15565
Half → 25K24976+173#15565#15392
25K → 30K265213+52#15392#15340
30K → 20M13876+62#15340#15278
20M → 21M82191-109#15278#15387
21M → 35K24203-179#15387#15566
35K → 23M110109+1#15566#15565
23M → 24M34147-113#15565#15678
24M → 40K45172-127#15678#15805
40K → 25.2M5117+34#15805#15771
25.2M → Finish26175-149#15771#15920
TOTALS25611638+923
📊

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