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BOSTON MARATHON 2025

Dayani Chavez Montoya

Bib: 12344•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 30%
Gender (Female)
#0 / 12228
Top 13%
Masters (Masters Women)
#0 / 6759
Top 4%
Division (F40-44)
#0 / 1718
Top 10%
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
7:18/mi
22:40
↑ 97↓ 3451.5%
10K· 6.21 mi
7:29/mi
45:55
↑ 79↓ 1380.4%
15K· 9.32 mi
7:22/mi
1:08:49
↑ 67↓ 78
20K· 12.43 mi
7:28/mi
1:32:00
↑ 106↓ 860.1%
Half· 13.11 mi
7:14/mi
1:36:56
↑ 19↓ 370.5%
25K· 15.53 mi
7:18/mi
1:54:39
↑ 66↓ 880.2%
30K· 18.64 mi
7:31/mi
2:18:00
↑ 181↓ 1480.2%
20M
7:32/mi
2:28:14
↑ 64↓ 500.2%
21M
7:57/mi
2:36:11
↑ 106↓ 241.6%
35K· 21.75 mi
7:25/mi
2:41:44
↑ 17↓ 861.7%
23M
7:22/mi
2:50:57
↑ 23↓ 630.6%
24M
7:18/mi
2:58:15
↓ 821.3%
40K· 24.85 mi
7:23/mi
3:04:34
↓ 200.3%
25.2M
8:10/mi
3:07:23
↑ 13↓ 160.2%
Finish· 26.22 mi
7:21/mi
3:14:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:56
Pace7:24 /mi
2nd Half
Distance13.11 mi
Time1:37:56
Pace7:28 /mi
📊Positive Split: 1.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:0822:407:1822:40
7:18
-
10K
6.21 mi11:13:2345:557:2323:15
7:29
+0:11
15K
9.32 mi11:36:171:08:497:2322:54
7:22
-0:07
20K
12.43 mi11:59:281:32:007:2423:11
7:28
+0:06
Half
13.11 mi12:04:241:36:567:244:56
7:14
-0:14
25K
15.53 mi12:22:071:54:397:2317:43
7:18
+0:04
30K
18.64 mi12:45:282:18:007:2423:21
7:31
+0:13
20M
20.00 mi12:55:422:28:147:2510:14
7:32
+0:01
21M
21.00 mi13:03:392:36:117:267:57
7:57
+0:25
35K
21.75 mi13:09:122:41:447:265:33
7:25
-0:32
23M
23.00 mi13:18:252:50:577:269:13
7:22
-0:03
24M
24.00 mi13:25:432:58:157:267:18
7:18
-0:04
40K
24.85 mi13:32:023:04:347:266:19
7:23
+0:05
25.2M
25.20 mi13:34:513:07:237:262:49
8:10
+0:47
Finish
26.22 mi13:42:203:14:527:267:29
7:21
-0:49

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

7:14 /mi

Average Pace

7:26 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:12:03

99% of race

Time at Steady Pace

2:49

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:26 /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 mi10:50:0822:407:1822:40
7:18
#10343
10K
6.21 mi11:13:2345:557:2323:15
7:29
#11156
15K
9.32 mi11:36:171:08:497:2322:54
7:22
#10907
20K
12.43 mi11:59:281:32:007:2423:11
7:28
#10781
Half
13.11 mi12:04:241:36:567:244:56
7:14
#10706
25K
15.53 mi12:22:071:54:397:2317:43
7:18
#10282
30K
18.64 mi12:45:282:18:007:2423:21
7:31
#9733
20M
20.00 mi12:55:422:28:147:2510:14
7:32
#9484
21M
21.00 mi13:03:392:36:117:267:57
7:57
#9285
35K
21.75 mi13:09:122:41:447:265:33
7:25
#9212
23M
23.00 mi13:18:252:50:577:269:13
7:22
#8934
24M
24.00 mi13:25:432:58:157:267:18
7:18
#8757
40K
24.85 mi13:32:023:04:347:266:19
7:23
#8599
25.2M
25.20 mi13:34:513:07:237:262:49
8:10
#8531
Finish
26.22 mi13:42:203:14:527:267:29
7:21
#8507
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi103431962196210604(Top 37%)2169(Top 18%)2169(Top 126%)
10K6.21 mi3.10 mi11156-8132372-4102372-41011957(Top 42%)2789(Top 23%)2789(Top 162%)
15K9.32 mi3.11 mi10907+2492271+1012271+10110604(Top 37%)2169(Top 18%)2169(Top 126%)
20K12.43 mi3.11 mi10781+1262228+432228+4310435(Top 37%)2173(Top 18%)2173(Top 126%)
Half13.11 mi0.68 mi10706+752198+302198+309438(Top 33%)1681(Top 14%)1681(Top 98%)
25K15.53 mi2.42 mi10282+4242038+1602038+1608431(Top 30%)1394(Top 11%)1394(Top 81%)
30K18.64 mi3.11 mi9733+5491839+1991839+1997868(Top 28%)1341(Top 11%)1341(Top 78%)
20M20.00 mi1.36 mi9484+2491766+731766+737243(Top 25%)1245(Top 10%)1245(Top 72%)
21M21.00 mi1.00 mi9285+1991705+611705+617108(Top 25%)1352(Top 11%)1352(Top 79%)
35K21.75 mi0.75 mi9212+731697+81697+88087(Top 28%)1713(Top 14%)1713(Top 100%)
23M23.00 mi1.25 mi8934+2781616+811616+815850(Top 21%)964(Top 8%)964(Top 56%)
24M24.00 mi1.00 mi8757+1771574+421574+426450(Top 23%)1247(Top 10%)1247(Top 73%)
40K24.85 mi0.85 mi8599+1581544+301544+306172(Top 22%)1212(Top 10%)1212(Top 71%)
25.2M25.20 mi0.35 mi8531+681535+91535+96937(Top 24%)1609(Top 13%)1609(Top 94%)
Finish26.22 mi1.02 mi8507+241546-111546-118095(Top 28%)2103(Top 17%)2103(Top 122%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

10604

Females

2169

F40-44

2169

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

11957

Females

2789

F40-44

2789

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

10604

Females

2169

F40-44

2169

15K→20K

9.3 - 12.4 mi

Top 37%
×5story building
+106ft-86ft

Overall

10435

Females

2173

F40-44

2173

20K→Half

12.4 - 13.1 mi

Top 33%
×2story building
+19ft-37ft

Overall

9438

Females

1681

F40-44

1681

Half→25K

13.1 - 15.5 mi

Top 30%
×4story building
+66ft-88ft

Overall

8431

Females

1394

F40-44

1394

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

7868

Females

1341

F40-44

1341

30K→20M

18.6 - 20.0 mi

Top 25%
×5story building
+64ft-50ft

Overall

7243

Females

1245

F40-44

1245

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

7108

Females

1352

F40-44

1352

21M→35K

21.0 - 21.8 mi

Top 28%
×7story building
+17ft-86ft

Overall

8087

Females

1713

F40-44

1713

35K→23M

21.8 - 23.0 mi

Top 21%
×5story building
+23ft-63ft

Overall

5850

Females

964

F40-44

964

23M→24M

23.0 - 24.0 mi

Top 23%
×6story building
+12ft-82ft

Overall

6450

Females

1247

F40-44

1247

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

6172

Females

1212

F40-44

1212

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6937

Females

1609

F40-44

1609

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2story building
+22ft-21ft

Overall

8095

Females

2103

F40-44

2103

Passing Analysis

Category:
Athletes Passed
3038*
Passed By
1202
Net Change
+1836
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10343
5K → 10K51864-813#10343#11156
10K → 15K31768+249#11156#10907
15K → 20K226100+126#10907#10781
20K → Half816+75#10781#10706
Half → 25K43410+424#10706#10282
25K → 30K567*18+549#10282#9733
30K → 20M2589+249#9733#9484
20M → 21M21112+199#9484#9285
21M → 35K9522+73#9285#9212
35K → 23M2835+278#9212#8934
23M → 24M19013+177#8934#8757
24M → 40K17012+158#8757#8599
40K → 25.2M779+68#8599#8531
25.2M → Finish7854+24#8531#8507
TOTALS3038*1202+1836

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing