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BOSTON MARATHON 2025

Mona Groteguth

Bib: 12975•F

IA

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0:00
/ mi
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Overall
#0 / 28404
Top 35%
Gender (Female)
#0 / 12228
Top 18%
Division (F18-39)
#0 / 5469
Top 31%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:52
Rank: #13810
Start → 5K
23:52 | 7:41/mi
10K· 6.21 mi
47:17
Rank: #13121 (+689)
5K → 10K
23:25 | 7:32/mi
15K· 9.32 mi
1:10:35
Rank: #12618 (+503)
10K → 15K
23:18 | 7:30/mi
20K· 12.43 mi
1:33:42
Rank: #11995 (+623)
15K → 20K
23:07 | 7:26/mi
Half· 13.11 mi
1:38:45
Rank: #11918 (+77)
20K → Half
5:03 | 7:24/mi
25K· 15.53 mi
1:56:47
Rank: #11486 (+432)
Half → 25K
18:02 | 7:26/mi
30K· 18.64 mi
2:20:33
Rank: #10951 (+535)
25K → 30K
23:46 | 7:39/mi
20M
2:30:58
Rank: #10676 (+275)
30K → 20M
10:25 | 7:40/mi
21M
2:39:02
Rank: #10465 (+211)
20M → 21M
8:04 | 8:04/mi
35K· 21.75 mi
2:44:38
Rank: #10366 (+99)
21M → 35K
5:36 | 7:29/mi
23M
2:54:21
Rank: #10195 (+171)
35K → 23M
9:43 | 7:46/mi
24M
3:01:57
Rank: #10078 (+117)
23M → 24M
7:36 | 7:36/mi
40K· 24.85 mi
3:08:37
Rank: #9990 (+88)
24M → 40K
6:40 | 7:48/mi
25.2M
3:11:32
Rank: #9940 (+50)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
3:19:07
Rank: #9863 (+77)
25.2M → Finish
7:35 | 7:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:45
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:40:22
Pace7:39 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:0823:527:4123:52
7:41
-
10K
6.21 mi11:17:3347:177:3723:25
7:32
-0:09
15K
9.32 mi11:40:511:10:357:3423:18
7:30
-0:02
20K
12.43 mi12:03:581:33:427:3223:07
7:26
-0:04
Half
13.11 mi12:09:011:38:457:325:03
7:24
-0:02
25K
15.53 mi12:27:031:56:477:3118:02
7:26
+0:02
30K
18.64 mi12:50:492:20:337:3223:46
7:39
+0:13
20M
20.00 mi13:01:142:30:587:3310:25
7:40
+0:01
21M
21.00 mi13:09:182:39:027:348:04
8:04
+0:24
35K
21.75 mi13:14:542:44:387:345:36
7:29
-0:35
23M
23.00 mi13:24:372:54:217:359:43
7:46
+0:17
24M
24.00 mi13:32:133:01:577:357:36
7:36
-0:10
40K
24.85 mi13:38:533:08:377:356:40
7:48
+0:12
25.2M
25.20 mi13:41:483:11:327:362:55
8:27
+0:39
Finish
26.22 mi13:49:233:19:077:367:35
7:26
-1:01

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

7:24 /mi

Average Pace

7:36 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:16:12

99% of race

Time at Steady Pace

2:55

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:36 /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 mi10:54:0823:527:4123:52
7:41
#13810
10K
6.21 mi11:17:3347:177:3723:25
7:32
#13121
15K
9.32 mi11:40:511:10:357:3423:18
7:30
#12618
20K
12.43 mi12:03:581:33:427:3223:07
7:26
#11995
Half
13.11 mi12:09:011:38:457:325:03
7:24
#11918
25K
15.53 mi12:27:031:56:477:3118:02
7:26
#11486
30K
18.64 mi12:50:492:20:337:3223:46
7:39
#10951
20M
20.00 mi13:01:142:30:587:3310:25
7:40
#10676
21M
21.00 mi13:09:182:39:027:348:04
8:04
#10465
35K
21.75 mi13:14:542:44:387:345:36
7:29
#10366
23M
23.00 mi13:24:372:54:217:359:43
7:46
#10195
24M
24.00 mi13:32:133:01:577:357:36
7:36
#10078
40K
24.85 mi13:38:533:08:377:356:40
7:48
#9990
25.2M
25.20 mi13:41:483:11:327:362:55
8:27
#9940
Finish
26.22 mi13:49:233:19:077:367:35
7:26
#9863
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi138103777377711772(Top 41%)2780(Top 23%)2780(Top 51%)
10K6.21 mi3.10 mi13121+6893410+3673410+36712441(Top 44%)3054(Top 25%)3054(Top 56%)
15K9.32 mi3.11 mi12618+5033162+2483162+24811772(Top 41%)2780(Top 23%)2780(Top 51%)
20K12.43 mi3.11 mi11995+6232865+2972865+29710259(Top 36%)2086(Top 17%)2086(Top 38%)
Half13.11 mi0.68 mi11918+772835+302835+3010947(Top 39%)2389(Top 20%)2389(Top 44%)
25K15.53 mi2.42 mi11486+4322642+1932642+1939472(Top 33%)1863(Top 15%)1863(Top 34%)
30K18.64 mi3.11 mi10951+5352444+1982444+1988837(Top 31%)1764(Top 14%)1764(Top 32%)
20M20.00 mi1.36 mi10676+2752341+1032341+1038164(Top 29%)1610(Top 13%)1610(Top 29%)
21M21.00 mi1.00 mi10465+2112278+632278+637787(Top 27%)1633(Top 13%)1633(Top 30%)
35K21.75 mi0.75 mi10366+992245+332245+338570(Top 30%)1936(Top 16%)1936(Top 35%)
23M23.00 mi1.25 mi10195+1712207+382207+388337(Top 29%)1966(Top 16%)1966(Top 36%)
24M24.00 mi1.00 mi10078+1172180+272180+278429(Top 30%)2061(Top 17%)2061(Top 38%)
40K24.85 mi0.85 mi9990+882170+102170+108773(Top 31%)2343(Top 19%)2343(Top 43%)
25.2M25.20 mi0.35 mi9940+502160+102160+108622(Top 30%)2335(Top 19%)2335(Top 43%)
Finish26.22 mi1.02 mi9863+772155+52155+58799(Top 31%)2437(Top 20%)2437(Top 45%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

11772

Females

2780

F18-39

2780

5K→10K

3.1 - 6.2 mi

Top 44%
×5stories
+79ft-138ft

Overall

12441

Females

3054

F18-39

3054

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

11772

Females

2780

F18-39

2780

15K→20K

9.3 - 12.4 mi

Top 36%
×5stories
+106ft-86ft

Overall

10259

Females

2086

F18-39

2086

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

10947

Females

2389

F18-39

2389

Half→25K

13.1 - 15.5 mi

Top 33%
×4stories
+66ft-88ft

Overall

9472

Females

1863

F18-39

1863

25K→30K

15.5 - 18.6 mi

Top 31%
×9stories
+181ft-148ft

Overall

8837

Females

1764

F18-39

1764

30K→20M

18.6 - 20.0 mi

Top 29%
×5stories
+64ft-50ft

Overall

8164

Females

1610

F18-39

1610

20M→21M

20.0 - 21.0 mi

Top 27%
×8stories
+106ft-24ft

Overall

7787

Females

1633

F18-39

1633

21M→35K

21.0 - 21.8 mi

Top 30%
×7stories
+17ft-86ft

Overall

8570

Females

1936

F18-39

1936

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

8337

Females

1966

F18-39

1966

23M→24M

23.0 - 24.0 mi

Top 30%
×6stories
+12ft-82ft

Overall

8429

Females

2061

F18-39

2061

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8773

Females

2343

F18-39

2343

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8622

Females

2335

F18-39

2335

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2stories
+22ft-21ft

Overall

8799

Females

2437

F18-39

2437

Passing Analysis

Category:
Athletes Passed
4249*
Passed By
302
Net Change
+3947
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13810
5K → 10K74253+689#13810#13121
10K → 15K54037+503#13121#12618
15K → 20K6307+623#12618#11995
20K → Half869+77#11995#11918
Half → 25K44210+432#11918#11486
25K → 30K55520+535#11486#10951
30K → 20M28510+275#10951#10676
20M → 21M23120+211#10676#10465
21M → 35K11011+99#10465#10366
35K → 23M19524+171#10366#10195
23M → 24M13821+117#10195#10078
24M → 40K125*37+88#10078#9990
40K → 25.2M58*8+50#9990#9940
25.2M → Finish11235+77#9940#9863
TOTALS4249*302+3947

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

📊

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