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BOSTON MARATHON 2025

Kirsten Nagel

Bib: 20212•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 42%
Gender (Female)
#0 / 12228
Top 27%
Masters (Masters Women)
#0 / 6759
Top 12%
Division (F40-44)
#0 / 1718
Top 26%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:22
Rank: #15203
Start → 5K
24:22 | 7:51/mi
10K· 6.21 mi
48:45
Rank: #15207 (-4)
5K → 10K
24:23 | 7:51/mi
15K· 9.32 mi
1:13:15
Rank: #15156 (+51)
10K → 15K
24:30 | 7:53/mi
20K· 12.43 mi
1:37:40
Rank: #14741 (+415)
15K → 20K
24:25 | 7:52/mi
Half· 13.11 mi
1:42:47
Rank: #14575 (+166)
20K → Half
5:07 | 7:30/mi
25K· 15.53 mi
2:01:46
Rank: #14209 (+366)
Half → 25K
18:59 | 7:50/mi
30K· 18.64 mi
2:26:42
Rank: #13637 (+572)
25K → 30K
24:56 | 8:02/mi
20M
2:37:27
Rank: #13316 (+321)
30K → 20M
10:45 | 7:55/mi
21M
2:45:42
Rank: #13003 (+313)
20M → 21M
8:15 | 8:15/mi
35K· 21.75 mi
2:51:18
Rank: #12847 (+156)
21M → 35K
5:36 | 7:29/mi
23M
3:00:54
Rank: #12486 (+361)
35K → 23M
9:36 | 7:40/mi
24M
3:08:26
Rank: #12264 (+222)
23M → 24M
7:32 | 7:32/mi
40K· 24.85 mi
3:15:07
Rank: #12109 (+155)
24M → 40K
6:41 | 7:49/mi
25.2M
3:18:08
Rank: #12051 (+58)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
3:26:00
Rank: #11994 (+57)
25.2M → Finish
7:52 | 7:43/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:42:47
Pace7:50 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:43:13
Pace7:52 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:4624:227:5124:22
7:51
-
10K
6.21 mi11:41:0948:457:5124:23
7:51
0:00
15K
9.32 mi12:05:391:13:157:5224:30
7:53
+0:02
20K
12.43 mi12:30:041:37:407:5224:25
7:52
-0:01
Half
13.11 mi12:35:111:42:477:505:07
7:30
-0:22
25K
15.53 mi12:54:102:01:467:5018:59
7:50
+0:20
30K
18.64 mi13:19:062:26:427:5224:56
8:02
+0:12
20M
20.00 mi13:29:512:37:277:5210:45
7:55
-0:07
21M
21.00 mi13:38:062:45:427:538:15
8:15
+0:20
35K
21.75 mi13:43:422:51:187:535:36
7:29
-0:46
23M
23.00 mi13:53:183:00:547:529:36
7:40
+0:11
24M
24.00 mi14:00:503:08:267:517:32
7:32
-0:08
40K
24.85 mi14:07:313:15:077:516:41
7:49
+0:17
25.2M
25.20 mi14:10:323:18:087:523:01
8:45
+0:56
Finish
26.22 mi14:18:243:26:007:527:52
7:43
-1:02

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

7:29 /mi

Average Pace

7:52 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:44

95% of race

Time at Steady Pace

11:16

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:51 /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 mi11:16:4624:227:5124:22
7:51
#15203
10K
6.21 mi11:41:0948:457:5124:23
7:51
#15207
15K
9.32 mi12:05:391:13:157:5224:30
7:53
#15156
20K
12.43 mi12:30:041:37:407:5224:25
7:52
#14741
Half
13.11 mi12:35:111:42:477:505:07
7:30
#14575
25K
15.53 mi12:54:102:01:467:5018:59
7:50
#14209
30K
18.64 mi13:19:062:26:427:5224:56
8:02
#13637
20M
20.00 mi13:29:512:37:277:5210:45
7:55
#13316
21M
21.00 mi13:38:062:45:427:538:15
8:15
#13003
35K
21.75 mi13:43:422:51:187:535:36
7:29
#12847
23M
23.00 mi13:53:183:00:547:529:36
7:40
#12486
24M
24.00 mi14:00:503:08:267:517:32
7:32
#12264
40K
24.85 mi14:07:313:15:077:516:41
7:49
#12109
25.2M
25.20 mi14:10:323:18:087:523:01
8:45
#12051
Finish
26.22 mi14:18:243:26:007:527:52
7:43
#11994
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi152034650465015130(Top 53%)4654(Top 38%)4654(Top 271%)
10K6.21 mi3.10 mi15207-44663-134663-1315245(Top 54%)4682(Top 38%)4682(Top 273%)
15K9.32 mi3.11 mi15156+514652+114652+1115130(Top 53%)4654(Top 38%)4654(Top 271%)
20K12.43 mi3.11 mi14741+4154435+2174435+21713759(Top 48%)3958(Top 32%)3958(Top 230%)
Half13.11 mi0.68 mi14575+1664331+1044331+10411787(Top 41%)2826(Top 23%)2826(Top 164%)
25K15.53 mi2.42 mi14209+3664163+1684163+16812596(Top 44%)3450(Top 28%)3450(Top 201%)
30K18.64 mi3.11 mi13637+5723902+2613902+26111589(Top 41%)3090(Top 25%)3090(Top 180%)
20M20.00 mi1.36 mi13316+3213751+1513751+1519862(Top 35%)2387(Top 20%)2387(Top 139%)
21M21.00 mi1.00 mi13003+3133614+1373614+1378953(Top 32%)2158(Top 18%)2158(Top 126%)
35K21.75 mi0.75 mi12847+1563541+733541+738596(Top 30%)1962(Top 16%)1962(Top 114%)
23M23.00 mi1.25 mi12486+3613396+1453396+1457741(Top 27%)1719(Top 14%)1719(Top 100%)
24M24.00 mi1.00 mi12264+2223303+933303+937991(Top 28%)1876(Top 15%)1876(Top 109%)
40K24.85 mi0.85 mi12109+1553260+433260+438932(Top 31%)2429(Top 20%)2429(Top 141%)
25.2M25.20 mi0.35 mi12051+583252+83252+810366(Top 36%)3202(Top 26%)3202(Top 186%)
Finish26.22 mi1.02 mi11994+573245+73245+710877(Top 38%)3398(Top 28%)3398(Top 198%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

15130

Females

4654

F40-44

4654

5K→10K

3.1 - 6.2 mi

Top 54%
×5stories
+79ft-138ft

Overall

15245

Females

4682

F40-44

4682

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

15130

Females

4654

F40-44

4654

15K→20K

9.3 - 12.4 mi

Top 48%
×5stories
+106ft-86ft

Overall

13759

Females

3958

F40-44

3958

20K→Half

12.4 - 13.1 mi

Top 41%
×2stories
+19ft-37ft

Overall

11787

Females

2826

F40-44

2826

Half→25K

13.1 - 15.5 mi

Top 44%
×4stories
+66ft-88ft

Overall

12596

Females

3450

F40-44

3450

25K→30K

15.5 - 18.6 mi

Top 41%
×9stories
+181ft-148ft

Overall

11589

Females

3090

F40-44

3090

30K→20M

18.6 - 20.0 mi

Top 35%
×5stories
+64ft-50ft

Overall

9862

Females

2387

F40-44

2387

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

8953

Females

2158

F40-44

2158

21M→35K

21.0 - 21.8 mi

Top 30%
×7stories
+17ft-86ft

Overall

8596

Females

1962

F40-44

1962

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

7741

Females

1719

F40-44

1719

23M→24M

23.0 - 24.0 mi

Top 28%
×6stories
+12ft-82ft

Overall

7991

Females

1876

F40-44

1876

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8932

Females

2429

F40-44

2429

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

10366

Females

3202

F40-44

3202

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10877

Females

3398

F40-44

3398

Passing Analysis

Category:
Athletes Passed
3847
Passed By
638
Net Change
+3209
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15203
5K → 10K289293-4#15203#15207
10K → 15K241190+51#15207#15156
15K → 20K44429+415#15156#14741
20K → Half1660+166#14741#14575
Half → 25K38216+366#14575#14209
25K → 30K59927+572#14209#13637
30K → 20M3287+321#13637#13316
20M → 21M3152+313#13316#13003
21M → 35K1593+156#13003#12847
35K → 23M3654+361#12847#12486
23M → 24M2253+222#12486#12264
24M → 40K1627+155#12264#12109
40K → 25.2M7113+58#12109#12051
25.2M → Finish10144+57#12051#11994
TOTALS3847638+3209
📊

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