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BOSTON MARATHON 2025

Mandy Arnzen

Bib: 7893•F

KY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 18%
Gender (Female)
#0 / 12228
Top 4%
Division (F18-39)
#0 / 5469
Top 7%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:04
Rank: #8668
Start → 5K
22:04 | 7:06/mi
10K· 6.21 mi
44:27
Rank: #9067 (-399)
5K → 10K
22:23 | 7:12/mi
15K· 9.32 mi
1:06:29
Rank: #8777 (+290)
10K → 15K
22:02 | 7:06/mi
20K· 12.43 mi
1:28:22
Rank: #8249 (+528)
15K → 20K
21:53 | 7:03/mi
Half· 13.11 mi
1:33:02
Rank: #8143 (+106)
20K → Half
4:40 | 6:50/mi
25K· 15.53 mi
1:49:43
Rank: #7677 (+466)
Half → 25K
16:41 | 6:53/mi
30K· 18.64 mi
2:11:03
Rank: #6863 (+814)
25K → 30K
21:20 | 6:52/mi
20M
2:20:21
Rank: #6500 (+363)
30K → 20M
9:18 | 6:51/mi
21M
2:27:30
Rank: #6232 (+268)
20M → 21M
7:09 | 7:09/mi
35K· 21.75 mi
2:32:16
Rank: #6047 (+185)
21M → 35K
4:46 | 6:22/mi
23M
2:40:52
Rank: #5773 (+274)
35K → 23M
8:36 | 6:52/mi
24M
2:47:28
Rank: #5551 (+222)
23M → 24M
6:36 | 6:36/mi
40K· 24.85 mi
2:53:02
Rank: #5363 (+188)
24M → 40K
5:34 | 6:31/mi
25.2M
2:55:25
Rank: #5256 (+107)
40K → 25.2M
2:23 | 6:55/mi
Finish· 26.22 mi
3:02:05
Rank: #5137 (+119)
25.2M → Finish
6:40 | 6:33/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:33:02
Pace7:06 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:29:03
Pace6:48 /mi
📊Negative Split: 4.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:1122:047:0622:04
7:06
-
10K
6.21 mi10:52:3444:277:0922:23
7:12
+0:06
15K
9.32 mi11:14:361:06:297:0822:02
7:06
-0:06
20K
12.43 mi11:36:291:28:227:0721:53
7:03
-0:03
Half
13.11 mi11:41:091:33:027:064:40
6:50
-0:13
25K
15.53 mi11:57:501:49:437:0416:41
6:53
+0:03
30K
18.64 mi12:19:102:11:037:0221:20
6:52
-0:01
20M
20.00 mi12:28:282:20:217:019:18
6:51
-0:01
21M
21.00 mi12:35:372:27:307:017:09
7:09
+0:18
35K
21.75 mi12:40:232:32:167:004:46
6:22
-0:47
23M
23.00 mi12:48:592:40:527:008:36
6:52
+0:30
24M
24.00 mi12:55:352:47:286:596:36
6:36
-0:16
40K
24.85 mi13:01:092:53:026:585:34
6:31
-0:05
25.2M
25.20 mi13:03:322:55:256:582:23
6:55
+0:24
Finish
26.22 mi13:10:123:02:056:576:40
6:33
-0:22

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

6:22 /mi

Average Pace

6:57 /mi

Slowest Pace

7:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:34

48% of race

Time at Steady Pace

1:35:31

52% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:57 /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 mi10:30:1122:047:0622:04
7:06
#8668
10K
6.21 mi10:52:3444:277:0922:23
7:12
#9067
15K
9.32 mi11:14:361:06:297:0822:02
7:06
#8777
20K
12.43 mi11:36:291:28:227:0721:53
7:03
#8249
Half
13.11 mi11:41:091:33:027:064:40
6:50
#8143
25K
15.53 mi11:57:501:49:437:0416:41
6:53
#7677
30K
18.64 mi12:19:102:11:037:0221:20
6:52
#6863
20M
20.00 mi12:28:282:20:217:019:18
6:51
#6500
21M
21.00 mi12:35:372:27:307:017:09
7:09
#6232
35K
21.75 mi12:40:232:32:167:004:46
6:22
#6047
23M
23.00 mi12:48:592:40:527:008:36
6:52
#5773
24M
24.00 mi12:55:352:47:286:596:36
6:36
#5551
40K
24.85 mi13:01:092:53:026:585:34
6:31
#5363
25.2M
25.20 mi13:03:322:55:256:582:23
6:55
#5256
Finish
26.22 mi13:10:123:02:056:576:40
6:33
#5137
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8668122312238283(Top 29%)1144(Top 9%)1144(Top 21%)
10K6.21 mi3.10 mi9067-3991402-1791402-1799526(Top 34%)1602(Top 13%)1602(Top 29%)
15K9.32 mi3.11 mi8777+2901301+1011301+1018283(Top 29%)1144(Top 9%)1144(Top 21%)
20K12.43 mi3.11 mi8249+5281125+1761125+1767157(Top 25%)820(Top 7%)820(Top 15%)
Half13.11 mi0.68 mi8143+1061086+391086+396530(Top 23%)651(Top 5%)651(Top 12%)
25K15.53 mi2.42 mi7677+466931+155931+1555529(Top 19%)501(Top 4%)501(Top 9%)
30K18.64 mi3.11 mi6863+814744+187744+1873879(Top 14%)290(Top 2%)290(Top 5%)
20M20.00 mi1.36 mi6500+363674+70674+703200(Top 11%)231(Top 2%)231(Top 4%)
21M21.00 mi1.00 mi6232+268628+46628+462948(Top 10%)215(Top 2%)215(Top 4%)
35K21.75 mi0.75 mi6047+185606+22606+221951(Top 7%)117(Top 1.0%)117(Top 2%)
23M23.00 mi1.25 mi5773+274555+51555+513087(Top 11%)260(Top 2%)260(Top 5%)
24M24.00 mi1.00 mi5551+222519+36519+362524(Top 9%)193(Top 2%)193(Top 4%)
40K24.85 mi0.85 mi5363+188488+31488+311678(Top 6%)121(Top 1.0%)121(Top 2%)
25.2M25.20 mi0.35 mi5256+107474+14474+141297(Top 5%)105(Top 0.9%)105(Top 2%)
Finish26.22 mi1.02 mi5137+119463+11463+113051(Top 11%)329(Top 3%)329(Top 6%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21stories
+97ft-345ft

Overall

8283

Females

1144

F18-39

1144

5K→10K

3.1 - 6.2 mi

Top 34%
×5stories
+79ft-138ft

Overall

9526

Females

1602

F18-39

1602

10K→15K

6.2 - 9.3 mi

Top 29%
×3stories
+67ft-78ft

Overall

8283

Females

1144

F18-39

1144

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

7157

Females

820

F18-39

820

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6530

Females

651

F18-39

651

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5529

Females

501

F18-39

501

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3879

Females

290

F18-39

290

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

3200

Females

231

F18-39

231

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2948

Females

215

F18-39

215

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1951

Females

117

F18-39

117

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

3087

Females

260

F18-39

260

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2524

Females

193

F18-39

193

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1678

Females

121

F18-39

121

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1297

Females

105

F18-39

105

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3051

Females

329

F18-39

329

Passing Analysis

Category:
Athletes Passed
4081
Passed By
550
Net Change
+3531
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8668
5K → 10K82481-399#8668#9067
10K → 15K33848+290#9067#8777
15K → 20K5379+528#8777#8249
20K → Half1060+106#8249#8143
Half → 25K4660+466#8143#7677
25K → 30K8151+814#7677#6863
30K → 20M3630+363#6863#6500
20M → 21M2702+268#6500#6232
21M → 35K1850+185#6232#6047
35K → 23M2762+274#6047#5773
23M → 24M2231+222#5773#5551
24M → 40K1880+188#5551#5363
40K → 25.2M1070+107#5363#5256
25.2M → Finish1256+119#5256#5137
TOTALS4081550+3531
📊

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