Boston Marathon logo
BOSTON MARATHON 2025

Diana Nieto

Bib: 20672•F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 49%
Division (F40-44)
#0 / 1718
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
8:57/mi
27:47
↑ 97↓ 3451.5%
10K· 6.21 mi
8:54/mi
55:27
↑ 79↓ 1380.4%
15K· 9.32 mi
8:57/mi
1:23:14
↑ 67↓ 78
20K· 12.43 mi
8:54/mi
1:50:54
↑ 106↓ 860.1%
Half· 13.11 mi
8:43/mi
1:56:51
↑ 19↓ 370.5%
25K· 15.53 mi
8:50/mi
2:18:17
↑ 66↓ 880.2%
30K· 18.64 mi
9:05/mi
2:46:30
↑ 181↓ 1480.2%
20M
9:00/mi
2:58:44
↑ 64↓ 500.2%
21M
9:21/mi
3:08:05
↑ 106↓ 241.6%
35K· 21.75 mi
8:51/mi
3:14:42
↑ 17↓ 861.7%
23M
8:51/mi
3:25:47
↑ 23↓ 630.6%
24M
8:26/mi
3:34:13
↓ 821.3%
40K· 24.85 mi
8:26/mi
3:41:26
↓ 200.3%
25.2M
9:05/mi
3:44:34
↑ 13↓ 160.2%
Finish· 26.22 mi
7:52/mi
3:52:35
↑ 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 Half⚖️ Balanced
Distance13.11 mi
Time1:56:51
Pace8:55 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:55:44
Pace8:50 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:4627:478:5727:47
8:57
-
10K
6.21 mi11:49:2655:278:5527:40
8:54
-0:03
15K
9.32 mi12:17:131:23:148:5627:47
8:57
+0:03
20K
12.43 mi12:44:531:50:548:5527:40
8:54
-0:03
Half
13.11 mi12:50:501:56:518:555:57
8:43
-0:11
25K
15.53 mi13:12:162:18:178:5421:26
8:50
+0:07
30K
18.64 mi13:40:292:46:308:5628:13
9:05
+0:15
20M
20.00 mi13:52:432:58:448:5612:14
9:00
-0:05
21M
21.00 mi14:02:043:08:058:579:21
9:21
+0:21
35K
21.75 mi14:08:413:14:428:576:37
8:51
-0:30
23M
23.00 mi14:19:463:25:478:5711:05
8:51
0:00
24M
24.00 mi14:28:123:34:138:568:26
8:26
-0:25
40K
24.85 mi14:35:253:41:268:557:13
8:26
0:00
25.2M
25.20 mi14:38:333:44:348:553:08
9:05
+0:39
Finish
26.22 mi14:46:343:52:358:538:01
7:52
-1:13

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

8:53 /mi

Slowest Pace

9:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

23:40

10% of race

Time at Steady Pace

3:19:34

86% of race

Time at Slower Pace

9:21

4% of race

Average Pace: 8:52 /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 mi11:21:4627:478:5727:47
8:57
#22182
10K
6.21 mi11:49:2655:278:5527:40
8:54
#22073
15K
9.32 mi12:17:131:23:148:5627:47
8:57
#21961
20K
12.43 mi12:44:531:50:548:5527:40
8:54
#21569
Half
13.11 mi12:50:501:56:518:555:57
8:43
#21506
25K
15.53 mi13:12:162:18:178:5421:26
8:50
#21109
30K
18.64 mi13:40:292:46:308:5628:13
9:05
#20533
20M
20.00 mi13:52:432:58:448:5612:14
9:00
#20252
21M
21.00 mi14:02:043:08:058:579:21
9:21
#19974
35K
21.75 mi14:08:413:14:428:576:37
8:51
#19884
23M
23.00 mi14:19:463:25:478:5711:05
8:51
#19641
24M
24.00 mi14:28:123:34:138:568:26
8:26
#19433
40K
24.85 mi14:35:253:41:268:557:13
8:26
#19211
25.2M
25.20 mi14:38:333:44:348:553:08
9:05
#19097
Finish
26.22 mi14:46:343:52:358:538:01
7:52
#18864
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi221828726872621765(Top 77%)8414(Top 69%)8414(Top 490%)
10K6.21 mi3.10 mi22073+1098654+728654+7221954(Top 77%)8567(Top 70%)8567(Top 499%)
15K9.32 mi3.11 mi21961+1128580+748580+7421765(Top 77%)8414(Top 69%)8414(Top 490%)
20K12.43 mi3.11 mi21569+3928357+2238357+22320503(Top 72%)7771(Top 64%)7771(Top 452%)
Half13.11 mi0.68 mi21506+638317+408317+4020490(Top 72%)7738(Top 63%)7738(Top 450%)
25K15.53 mi2.42 mi21109+3978101+2168101+21619162(Top 67%)7057(Top 58%)7057(Top 411%)
30K18.64 mi3.11 mi20533+5767829+2727829+27218110(Top 64%)6641(Top 54%)6641(Top 387%)
20M20.00 mi1.36 mi20252+2817697+1327697+13216831(Top 59%)6056(Top 50%)6056(Top 353%)
21M21.00 mi1.00 mi19974+2787556+1417556+14115442(Top 54%)5425(Top 44%)5425(Top 316%)
35K21.75 mi0.75 mi19884+907518+387518+3817527(Top 62%)6653(Top 54%)6653(Top 387%)
23M23.00 mi1.25 mi19641+2437420+987420+9815441(Top 54%)5575(Top 46%)5575(Top 325%)
24M24.00 mi1.00 mi19433+2087323+977323+9714154(Top 50%)4920(Top 40%)4920(Top 286%)
40K24.85 mi0.85 mi19211+2227216+1077216+10713107(Top 46%)4518(Top 37%)4518(Top 263%)
25.2M25.20 mi0.35 mi19097+1147163+537163+5312431(Top 44%)4230(Top 35%)4230(Top 246%)
Finish26.22 mi1.02 mi18864+2337052+1117052+11111994(Top 42%)3942(Top 32%)3942(Top 229%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

21765

Females

8414

F40-44

8414

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

21954

Females

8567

F40-44

8567

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

21765

Females

8414

F40-44

8414

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20503

Females

7771

F40-44

7771

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

20490

Females

7738

F40-44

7738

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

19162

Females

7057

F40-44

7057

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

18110

Females

6641

F40-44

6641

30K→20M

18.6 - 20.0 mi

Top 59%
×5story building
+64ft-50ft

Overall

16831

Females

6056

F40-44

6056

20M→21M

20.0 - 21.0 mi

Top 54%
×8story building
+106ft-24ft

Overall

15442

Females

5425

F40-44

5425

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

17527

Females

6653

F40-44

6653

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

15441

Females

5575

F40-44

5575

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

14154

Females

4920

F40-44

4920

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

13107

Females

4518

F40-44

4518

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

12431

Females

4230

F40-44

4230

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2story building
+22ft-21ft

Overall

11994

Females

3942

F40-44

3942

Passing Analysis

Category:
Athletes Passed
3749
Passed By
431
Net Change
+3318
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22182
5K → 10K313204+109#22182#22073
10K → 15K250138+112#22073#21961
15K → 20K42331+392#21961#21569
20K → Half674+63#21569#21506
Half → 25K4069+397#21506#21109
25K → 30K59115+576#21109#20533
30K → 20M2843+281#20533#20252
20M → 21M2813+278#20252#19974
21M → 35K10010+90#19974#19884
35K → 23M2518+243#19884#19641
23M → 24M2102+208#19641#19433
24M → 40K2231+222#19433#19211
40K → 25.2M1151+114#19211#19097
25.2M → Finish2352+233#19097#18864
TOTALS3749431+3318
📊

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