Boston Marathon logo
BOSTON MARATHON 2025

Danielle Sansonetti

Bib: 10349•F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 30%
Gender (Female)
#0 / 12228
Top 13%
Masters (Masters Women)
#0 / 6759
Top 4%
Division (F45-49)
#0 / 1813
Top 5%
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
6:41/mi
20:47
↑ 97↓ 3451.5%
10K· 6.21 mi
6:50/mi
42:00
↑ 79↓ 1380.4%
15K· 9.32 mi
7:03/mi
1:03:53
↑ 67↓ 78
20K· 12.43 mi
7:15/mi
1:26:23
↑ 106↓ 860.1%
Half· 13.11 mi
7:05/mi
1:31:13
↑ 19↓ 370.5%
25K· 15.53 mi
7:26/mi
1:49:14
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:13:44
↑ 181↓ 1480.2%
20M
8:04/mi
2:24:42
↑ 64↓ 500.2%
21M
8:48/mi
2:33:30
↑ 106↓ 241.6%
35K· 21.75 mi
7:46/mi
2:39:19
↑ 17↓ 861.7%
23M
8:06/mi
2:49:28
↑ 23↓ 630.6%
24M
7:43/mi
2:57:11
↓ 821.3%
40K· 24.85 mi
8:04/mi
3:04:05
↓ 200.3%
25.2M
8:56/mi
3:07:10
↑ 13↓ 160.2%
Finish· 26.22 mi
7:53/mi
3:15:12
↑ 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
Time1:31:13
Pace6:57 /mi
2nd Half
Distance13.11 mi
Time1:43:59
Pace7:56 /mi
📊Positive Split: 14.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:2720:476:4120:47
6:41
-
10K
6.21 mi11:07:4042:006:4621:13
6:50
+0:09
15K
9.32 mi11:29:331:03:536:5121:53
7:03
+0:13
20K
12.43 mi11:52:031:26:236:5722:30
7:15
+0:12
Half
13.11 mi11:56:531:31:136:574:50
7:05
-0:10
25K
15.53 mi12:14:541:49:147:0218:01
7:26
+0:21
30K
18.64 mi12:39:242:13:447:1024:30
7:53
+0:27
20M
20.00 mi12:50:222:24:427:1410:58
8:04
+0:11
21M
21.00 mi12:59:102:33:307:198:48
8:48
+0:44
35K
21.75 mi13:04:592:39:197:205:49
7:46
-1:02
23M
23.00 mi13:15:082:49:287:2210:09
8:06
+0:20
24M
24.00 mi13:22:512:57:117:237:43
7:43
-0:23
40K
24.85 mi13:29:453:04:057:246:54
8:04
+0:21
25.2M
25.20 mi13:32:503:07:107:263:05
8:56
+0:52
Finish
26.22 mi13:40:523:15:127:278:02
7:53
-1:03

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

6:41 /mi

Average Pace

7:27 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:14

56% of race

Time at Steady Pace

1:03:56

33% of race

Time at Slower Pace

22:02

11% of race

Average Pace: 7:27 /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 mi10:46:2720:476:4120:47
6:41
#5375
10K
6.21 mi11:07:4042:006:4621:13
6:50
#5933
15K
9.32 mi11:29:331:03:536:5121:53
7:03
#6711
20K
12.43 mi11:52:031:26:236:5722:30
7:15
#7182
Half
13.11 mi11:56:531:31:136:574:50
7:05
#7231
25K
15.53 mi12:14:541:49:147:0218:01
7:26
#7465
30K
18.64 mi12:39:242:13:447:1024:30
7:53
#7862
20M
20.00 mi12:50:222:24:427:1410:58
8:04
#8022
21M
21.00 mi12:59:102:33:307:198:48
8:48
#8213
35K
21.75 mi13:04:592:39:197:205:49
7:46
#8269
23M
23.00 mi13:15:082:49:287:2210:09
8:06
#8363
24M
24.00 mi13:22:512:57:117:237:43
7:43
#8347
40K
24.85 mi13:29:453:04:057:246:54
8:04
#8419
25.2M
25.20 mi13:32:503:07:107:263:05
8:56
#8470
Finish
26.22 mi13:40:523:15:127:278:02
7:53
#8624
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi53753733737931(Top 28%)1010(Top 8%)1010(Top 56%)
10K6.21 mi3.10 mi5933-558471-98471-986714(Top 24%)647(Top 5%)647(Top 36%)
15K9.32 mi3.11 mi6711-778644-173644-1737931(Top 28%)1010(Top 8%)1010(Top 56%)
20K12.43 mi3.11 mi7182-471760-116760-1168567(Top 30%)1339(Top 11%)1339(Top 74%)
Half13.11 mi0.68 mi7231-49778-18778-188256(Top 29%)1194(Top 10%)1194(Top 66%)
25K15.53 mi2.42 mi7465-234862-84862-849396(Top 33%)1820(Top 15%)1820(Top 100%)
30K18.64 mi3.11 mi7862-3971051-1891051-18910531(Top 37%)2549(Top 21%)2549(Top 141%)
20M20.00 mi1.36 mi8022-1601155-1041155-10410895(Top 38%)2882(Top 24%)2882(Top 159%)
21M21.00 mi1.00 mi8213-1911252-971252-9712294(Top 43%)3745(Top 31%)3745(Top 207%)
35K21.75 mi0.75 mi8269-561295-431295-4310635(Top 37%)2906(Top 24%)2906(Top 160%)
23M23.00 mi1.25 mi8363-941379-841379-8410801(Top 38%)3124(Top 26%)3124(Top 172%)
24M24.00 mi1.00 mi8347+161403-241403-249227(Top 32%)2425(Top 20%)2425(Top 134%)
40K24.85 mi0.85 mi8419-721470-671470-6710677(Top 38%)3246(Top 27%)3246(Top 179%)
25.2M25.20 mi0.35 mi8470-511510-401510-4011477(Top 40%)3714(Top 30%)3714(Top 205%)
Finish26.22 mi1.02 mi8624-1541600-901600-9012061(Top 42%)3949(Top 32%)3949(Top 218%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21story building
+97ft-345ft

Overall

7931

Females

1010

F45-49

1010

5K→10K

3.1 - 6.2 mi

Top 24%
×5story building
+79ft-138ft

Overall

6714

Females

647

F45-49

647

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+67ft-78ft

Overall

7931

Females

1010

F45-49

1010

15K→20K

9.3 - 12.4 mi

Top 30%
×5story building
+106ft-86ft

Overall

8567

Females

1339

F45-49

1339

20K→Half

12.4 - 13.1 mi

Top 29%
×2story building
+19ft-37ft

Overall

8256

Females

1194

F45-49

1194

Half→25K

13.1 - 15.5 mi

Top 33%
×4story building
+66ft-88ft

Overall

9396

Females

1820

F45-49

1820

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

10531

Females

2549

F45-49

2549

30K→20M

18.6 - 20.0 mi

Top 38%
×5story building
+64ft-50ft

Overall

10895

Females

2882

F45-49

2882

20M→21M

20.0 - 21.0 mi

Top 43%
×8story building
+106ft-24ft

Overall

12294

Females

3745

F45-49

3745

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

10635

Females

2906

F45-49

2906

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10801

Females

3124

F45-49

3124

23M→24M

23.0 - 24.0 mi

Top 32%
×6story building
+12ft-82ft

Overall

9227

Females

2425

F45-49

2425

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10677

Females

3246

F45-49

3246

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11477

Females

3714

F45-49

3714

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2story building
+22ft-21ft

Overall

12061

Females

3949

F45-49

3949

Passing Analysis

Category:
Athletes Passed
678
Passed By
3927
Net Change
-3249
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5375
5K → 10K33591-558#5375#5933
10K → 15K32810-778#5933#6711
15K → 20K40511-471#6711#7182
20K → Half554-49#7182#7231
Half → 25K56290-234#7231#7465
25K → 30K89486-397#7465#7862
30K → 20M55215-160#7862#8022
20M → 21M46237-191#8022#8213
21M → 35K46102-56#8213#8269
35K → 23M83177-94#8269#8363
23M → 24M8367+16#8363#8347
24M → 40K55127-72#8347#8419
40K → 25.2M2576-51#8419#8470
25.2M → Finish30184-154#8470#8624
TOTALS6783927-3249
📊

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