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BOSTON MARATHON 2025

Ana Fierro Obregon

Bib: 17103•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 36%
Gender (Female)
#0 / 12228
Top 19%
Division (F18-39)
#0 / 5469
Top 32%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:09
Rank: #11805
Start → 5K
23:09 | 7:27/mi
10K· 6.21 mi
46:38
Rank: #12178 (-373)
5K → 10K
23:29 | 7:34/mi
15K· 9.32 mi
1:09:54
Rank: #11987 (+191)
10K → 15K
23:16 | 7:29/mi
20K· 12.43 mi
1:32:47
Rank: #11367 (+620)
15K → 20K
22:53 | 7:22/mi
Half· 13.11 mi
1:37:46
Rank: #11296 (+71)
20K → Half
4:59 | 7:18/mi
25K· 15.53 mi
1:55:50
Rank: #10955 (+341)
Half → 25K
18:04 | 7:27/mi
30K· 18.64 mi
2:20:23
Rank: #10876 (+79)
25K → 30K
24:33 | 7:54/mi
20M
2:31:17
Rank: #10810 (+66)
30K → 20M
10:54 | 8:01/mi
21M
2:39:35
Rank: #10671 (+139)
20M → 21M
8:18 | 8:18/mi
35K· 21.75 mi
2:45:14
Rank: #10589 (+82)
21M → 35K
5:39 | 7:33/mi
23M
2:54:59
Rank: #10399 (+190)
35K → 23M
9:45 | 7:47/mi
24M
3:02:39
Rank: #10313 (+86)
23M → 24M
7:40 | 7:40/mi
40K· 24.85 mi
3:09:12
Rank: #10176 (+137)
24M → 40K
6:33 | 7:40/mi
25.2M
3:12:04
Rank: #10123 (+53)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:19:49
Rank: #10087 (+36)
25.2M → Finish
7:45 | 7:36/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:46
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:42:03
Pace7:47 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:1223:097:2723:09
7:27
-
10K
6.21 mi11:36:4146:387:3023:29
7:34
+0:07
15K
9.32 mi11:59:571:09:547:3023:16
7:29
-0:05
20K
12.43 mi12:22:501:32:477:2822:53
7:22
-0:07
Half
13.11 mi12:27:491:37:467:274:59
7:18
-0:04
25K
15.53 mi12:45:531:55:507:2718:04
7:27
+0:09
30K
18.64 mi13:10:262:20:237:3224:33
7:54
+0:27
20M
20.00 mi13:21:202:31:177:3410:54
8:01
+0:07
21M
21.00 mi13:29:382:39:357:368:18
8:18
+0:17
35K
21.75 mi13:35:172:45:147:365:39
7:33
-0:45
23M
23.00 mi13:45:022:54:597:369:45
7:47
+0:14
24M
24.00 mi13:52:423:02:397:377:40
7:40
-0:07
40K
24.85 mi13:59:153:09:127:376:33
7:40
0:00
25.2M
25.20 mi14:02:073:12:047:372:52
8:19
+0:39
Finish
26.22 mi14:09:523:19:497:387:45
7:36
-0:43

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

7:18 /mi

Average Pace

7:38 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:08:39

94% of race

Time at Steady Pace

11:10

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:37 /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 mi11:13:1223:097:2723:09
7:27
#11805
10K
6.21 mi11:36:4146:387:3023:29
7:34
#12178
15K
9.32 mi11:59:571:09:547:3023:16
7:29
#11987
20K
12.43 mi12:22:501:32:477:2822:53
7:22
#11367
Half
13.11 mi12:27:491:37:467:274:59
7:18
#11296
25K
15.53 mi12:45:531:55:507:2718:04
7:27
#10955
30K
18.64 mi13:10:262:20:237:3224:33
7:54
#10876
20M
20.00 mi13:21:202:31:177:3410:54
8:01
#10810
21M
21.00 mi13:29:382:39:357:368:18
8:18
#10671
35K
21.75 mi13:35:172:45:147:365:39
7:33
#10589
23M
23.00 mi13:45:022:54:597:369:45
7:47
#10399
24M
24.00 mi13:52:423:02:397:377:40
7:40
#10313
40K
24.85 mi13:59:153:09:127:376:33
7:40
#10176
25.2M
25.20 mi14:02:073:12:047:372:52
8:19
#10123
Finish
26.22 mi14:09:523:19:497:387:45
7:36
#10087
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi118052686268611687(Top 41%)2733(Top 22%)2733(Top 50%)
10K6.21 mi3.10 mi12178-3732899-2132899-21312652(Top 45%)3170(Top 26%)3170(Top 58%)
15K9.32 mi3.11 mi11987+1912827+722827+7211687(Top 41%)2733(Top 22%)2733(Top 50%)
20K12.43 mi3.11 mi11367+6202536+2912536+2919616(Top 34%)1797(Top 15%)1797(Top 33%)
Half13.11 mi0.68 mi11296+712499+372499+3710116(Top 36%)2022(Top 17%)2022(Top 37%)
25K15.53 mi2.42 mi10955+3412366+1332366+1339572(Top 34%)1914(Top 16%)1914(Top 35%)
30K18.64 mi3.11 mi10876+792398-322398-3210653(Top 38%)2618(Top 21%)2618(Top 48%)
20M20.00 mi1.36 mi10810+662411-132411-1310588(Top 37%)2726(Top 22%)2726(Top 50%)
21M21.00 mi1.00 mi10671+1392380+312380+319242(Top 33%)2266(Top 19%)2266(Top 41%)
35K21.75 mi0.75 mi10589+822354+262354+269055(Top 32%)2149(Top 18%)2149(Top 39%)
23M23.00 mi1.25 mi10399+1902306+482306+488523(Top 30%)2054(Top 17%)2054(Top 38%)
24M24.00 mi1.00 mi10313+862292+142292+148926(Top 31%)2289(Top 19%)2289(Top 42%)
40K24.85 mi0.85 mi10176+1372267+252267+257871(Top 28%)1936(Top 16%)1936(Top 35%)
25.2M25.20 mi0.35 mi10123+532252+152252+157790(Top 27%)1979(Top 16%)1979(Top 36%)
Finish26.22 mi1.02 mi10087+362264-122264-129991(Top 35%)2973(Top 24%)2973(Top 54%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

11687

Females

2733

F18-39

2733

5K→10K

3.1 - 6.2 mi

Top 45%
×5stories
+79ft-138ft

Overall

12652

Females

3170

F18-39

3170

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

11687

Females

2733

F18-39

2733

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

9616

Females

1797

F18-39

1797

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

10116

Females

2022

F18-39

2022

Half→25K

13.1 - 15.5 mi

Top 34%
×4stories
+66ft-88ft

Overall

9572

Females

1914

F18-39

1914

25K→30K

15.5 - 18.6 mi

Top 38%
×9stories
+181ft-148ft

Overall

10653

Females

2618

F18-39

2618

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

10588

Females

2726

F18-39

2726

20M→21M

20.0 - 21.0 mi

Top 33%
×8stories
+106ft-24ft

Overall

9242

Females

2266

F18-39

2266

21M→35K

21.0 - 21.8 mi

Top 32%
×7stories
+17ft-86ft

Overall

9055

Females

2149

F18-39

2149

35K→23M

21.8 - 23.0 mi

Top 30%
×5stories
+23ft-63ft

Overall

8523

Females

2054

F18-39

2054

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

8926

Females

2289

F18-39

2289

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7871

Females

1936

F18-39

1936

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7790

Females

1979

F18-39

1979

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

9991

Females

2973

F18-39

2973

Passing Analysis

Category:
Athletes Passed
2802
Passed By
1084
Net Change
+1718
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11805
5K → 10K123496-373#11805#12178
10K → 15K291100+191#12178#11987
15K → 20K63111+620#11987#11367
20K → Half765+71#11367#11296
Half → 25K36322+341#11296#10955
25K → 30K270191+79#10955#10876
30K → 20M14478+66#10876#10810
20M → 21M17031+139#10810#10671
21M → 35K9513+82#10671#10589
35K → 23M20818+190#10589#10399
23M → 24M12640+86#10399#10313
24M → 40K15013+137#10313#10176
40K → 25.2M607+53#10176#10123
25.2M → Finish9559+36#10123#10087
TOTALS28021084+1718
📊

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