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BOSTON MARATHON 2025

Ana Calderon-Cordero

Bib: 7083•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 21%
Gender (Female)
#0 / 12228
Top 5%
Division (F18-39)
#0 / 5469
Top 10%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:39
Rank: #5014
Start → 5K
20:39 | 6:39/mi
10K· 6.21 mi
41:30
Rank: #5188 (-174)
5K → 10K
20:51 | 6:43/mi
15K· 9.32 mi
1:02:35
Rank: #5392 (-204)
10K → 15K
21:05 | 6:47/mi
20K· 12.43 mi
1:23:59
Rank: #5558 (-166)
15K → 20K
21:24 | 6:53/mi
Half· 13.11 mi
1:28:38
Rank: #5593 (-35)
20K → Half
4:39 | 6:49/mi
25K· 15.53 mi
1:45:35
Rank: #5691 (-98)
Half → 25K
16:57 | 6:59/mi
30K· 18.64 mi
2:09:51
Rank: #6442 (-751)
25K → 30K
24:16 | 7:49/mi
20M
2:19:57
Rank: #6376 (+66)
30K → 20M
10:06 | 7:26/mi
21M
2:27:55
Rank: #6348 (+28)
20M → 21M
7:58 | 7:58/mi
35K· 21.75 mi
2:33:19
Rank: #6312 (+36)
21M → 35K
5:24 | 7:13/mi
23M
2:42:35
Rank: #6232 (+80)
35K → 23M
9:16 | 7:24/mi
24M
2:49:46
Rank: #6150 (+82)
23M → 24M
7:11 | 7:11/mi
40K· 24.85 mi
2:56:00
Rank: #6061 (+89)
24M → 40K
6:14 | 7:17/mi
25.2M
2:58:46
Rank: #6037 (+24)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
3:06:00
Rank: #5986 (+51)
25.2M → Finish
7:14 | 7:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:38
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:37:22
Pace7:26 /mi
📊Positive Split: 9.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:3320:396:3920:39
6:39
-
10K
6.21 mi10:48:2441:306:4120:51
6:43
+0:04
15K
9.32 mi11:09:291:02:356:4321:05
6:47
+0:04
20K
12.43 mi11:30:531:23:596:4521:24
6:53
+0:06
Half
13.11 mi11:35:321:28:386:464:39
6:49
-0:04
25K
15.53 mi11:52:291:45:356:4816:57
6:59
+0:10
30K
18.64 mi12:16:452:09:516:5824:16
7:49
+0:50
20M
20.00 mi12:26:512:19:577:0010:06
7:26
-0:23
21M
21.00 mi12:34:492:27:557:037:58
7:58
+0:32
35K
21.75 mi12:40:132:33:197:035:24
7:13
-0:45
23M
23.00 mi12:49:292:42:357:049:16
7:24
+0:11
24M
24.00 mi12:56:402:49:467:047:11
7:11
-0:13
40K
24.85 mi13:02:542:56:007:056:14
7:17
+0:06
25.2M
25.20 mi13:05:402:58:467:062:46
8:01
+0:44
Finish
26.22 mi13:12:543:06:007:067:14
7:06
-0:55

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

6:39 /mi

Average Pace

7:06 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:38

48% of race

Time at Steady Pace

43:00

23% of race

Time at Slower Pace

54:22

29% of race

Average Pace: 7:06 /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 mi10:27:3320:396:3920:39
6:39
#5014
10K
6.21 mi10:48:2441:306:4120:51
6:43
#5188
15K
9.32 mi11:09:291:02:356:4321:05
6:47
#5392
20K
12.43 mi11:30:531:23:596:4521:24
6:53
#5558
Half
13.11 mi11:35:321:28:386:464:39
6:49
#5593
25K
15.53 mi11:52:291:45:356:4816:57
6:59
#5691
30K
18.64 mi12:16:452:09:516:5824:16
7:49
#6442
20M
20.00 mi12:26:512:19:577:0010:06
7:26
#6376
21M
21.00 mi12:34:492:27:557:037:58
7:58
#6348
35K
21.75 mi12:40:132:33:197:035:24
7:13
#6312
23M
23.00 mi12:49:292:42:357:049:16
7:24
#6232
24M
24.00 mi12:56:402:49:467:047:11
7:11
#6150
40K
24.85 mi13:02:542:56:007:056:14
7:17
#6061
25.2M
25.20 mi13:05:402:58:467:062:46
8:01
#6037
Finish
26.22 mi13:12:543:06:007:067:14
7:06
#5986
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi50143223225974(Top 21%)531(Top 4%)531(Top 10%)
10K6.21 mi3.10 mi5188-174352-30352-305464(Top 19%)413(Top 3%)413(Top 8%)
15K9.32 mi3.11 mi5392-204391-39391-395974(Top 21%)531(Top 4%)531(Top 10%)
20K12.43 mi3.11 mi5558-166429-38429-386115(Top 22%)581(Top 5%)581(Top 11%)
Half13.11 mi0.68 mi5593-35441-12441-126361(Top 22%)623(Top 5%)623(Top 11%)
25K15.53 mi2.42 mi5691-98463-22463-226292(Top 22%)668(Top 5%)668(Top 12%)
30K18.64 mi3.11 mi6442-751639-176639-17610029(Top 35%)2296(Top 19%)2296(Top 42%)
20M20.00 mi1.36 mi6376+66641-2641-26593(Top 23%)1001(Top 8%)1001(Top 18%)
21M21.00 mi1.00 mi6348+28653-12653-127179(Top 25%)1368(Top 11%)1368(Top 25%)
35K21.75 mi0.75 mi6312+36657-4657-46750(Top 24%)1171(Top 10%)1171(Top 21%)
23M23.00 mi1.25 mi6232+80665-8665-86070(Top 21%)1042(Top 9%)1042(Top 19%)
24M24.00 mi1.00 mi6150+82660+5660+55745(Top 20%)966(Top 8%)966(Top 18%)
40K24.85 mi0.85 mi6061+89655+5655+55621(Top 20%)972(Top 8%)972(Top 18%)
25.2M25.20 mi0.35 mi6037+24658-3658-36108(Top 22%)1266(Top 10%)1266(Top 23%)
Finish26.22 mi1.02 mi5986+51666-8666-86383(Top 22%)1384(Top 11%)1384(Top 25%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5974

Females

531

F18-39

531

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5464

Females

413

F18-39

413

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5974

Females

531

F18-39

531

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

6115

Females

581

F18-39

581

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

6361

Females

623

F18-39

623

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

6292

Females

668

F18-39

668

25K→30K

15.5 - 18.6 mi

Top 35%
×9stories
+181ft-148ft

Overall

10029

Females

2296

F18-39

2296

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6593

Females

1001

F18-39

1001

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

7179

Females

1368

F18-39

1368

21M→35K

21.0 - 21.8 mi

Top 24%
×7stories
+17ft-86ft

Overall

6750

Females

1171

F18-39

1171

35K→23M

21.8 - 23.0 mi

Top 21%
×5stories
+23ft-63ft

Overall

6070

Females

1042

F18-39

1042

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5745

Females

966

F18-39

966

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5621

Females

972

F18-39

972

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

6108

Females

1266

F18-39

1266

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

6383

Females

1384

F18-39

1384

Passing Analysis

Category:
Athletes Passed
1107
Passed By
2079
Net Change
-972
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5014
5K → 10K106280-174#5014#5188
10K → 15K64268-204#5188#5392
15K → 20K81247-166#5392#5558
20K → Half1550-35#5558#5593
Half → 25K90188-98#5593#5691
25K → 30K49800-751#5691#6442
30K → 20M12155+66#6442#6376
20M → 21M7850+28#6376#6348
21M → 35K5822+36#6348#6312
35K → 23M11333+80#6312#6232
23M → 24M10826+82#6232#6150
24M → 40K989+89#6150#6061
40K → 25.2M3713+24#6061#6037
25.2M → Finish8938+51#6037#5986
TOTALS11072079-972
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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