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BOSTON MARATHON 2025

Valerie Grimba

Bib: 17979•F

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Overall
#0 / 28404
Top 32%
Gender (Female)
#0 / 12228
Top 15%
Division (F18-39)
#0 / 5469
Top 27%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:27/mi
23:09
↑ 97↓ 3451.5%
10K· 6.21 mi
7:21/mi
45:59
↑ 79↓ 1380.4%
15K· 9.32 mi
7:23/mi
1:08:56
↑ 67↓ 78
20K· 12.43 mi
7:22/mi
1:31:48
↑ 106↓ 860.1%
Half· 13.11 mi
7:20/mi
1:36:48
↑ 19↓ 370.5%
25K· 15.53 mi
7:21/mi
1:54:37
↑ 66↓ 880.2%
30K· 18.64 mi
7:35/mi
2:18:11
↑ 181↓ 1480.2%
20M
7:49/mi
2:28:48
↑ 64↓ 500.2%
21M
8:15/mi
2:37:03
↑ 106↓ 241.6%
35K· 21.75 mi
7:36/mi
2:42:44
↑ 17↓ 861.7%
23M
7:44/mi
2:52:25
↑ 23↓ 630.6%
24M
7:34/mi
2:59:59
↓ 821.3%
40K· 24.85 mi
7:42/mi
3:06:34
↓ 200.3%
25.2M
8:22/mi
3:09:27
↑ 13↓ 160.2%
Finish· 26.22 mi
7:07/mi
3:16:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:48
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:39:54
Pace7:37 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:0023:097:2723:09
7:27
-
10K
6.21 mi11:36:5045:597:2422:50
7:21
-0:06
15K
9.32 mi11:59:471:08:567:2422:57
7:23
+0:02
20K
12.43 mi12:22:391:31:487:2322:52
7:22
-0:01
Half
13.11 mi12:27:391:36:487:235:00
7:20
-0:02
25K
15.53 mi12:45:281:54:377:2317:49
7:21
+0:01
30K
18.64 mi13:09:022:18:117:2523:34
7:35
+0:14
20M
20.00 mi13:19:392:28:487:2610:37
7:49
+0:14
21M
21.00 mi13:27:542:37:037:298:15
8:15
+0:26
35K
21.75 mi13:33:352:42:447:295:41
7:36
-0:39
23M
23.00 mi13:43:162:52:257:309:41
7:44
+0:08
24M
24.00 mi13:50:502:59:597:307:34
7:34
-0:10
40K
24.85 mi13:57:253:06:347:306:35
7:42
+0:08
25.2M
25.20 mi14:00:183:09:277:312:53
8:22
+0:40
Finish
26.22 mi14:07:333:16:427:307:15
7:07
-1:15

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

7:07 /mi

Average Pace

7:30 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:05:34

94% of race

Time at Steady Pace

11:08

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:30 /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 mi11:14:0023:097:2723:09
7:27
#11799
10K
6.21 mi11:36:5045:597:2422:50
7:21
#11244
15K
9.32 mi11:59:471:08:567:2422:57
7:23
#11024
20K
12.43 mi12:22:391:31:487:2322:52
7:22
#10634
Half
13.11 mi12:27:391:36:487:235:00
7:20
#10609
25K
15.53 mi12:45:281:54:377:2317:49
7:21
#10262
30K
18.64 mi13:09:022:18:117:2523:34
7:35
#9812
20M
20.00 mi13:19:392:28:487:2610:37
7:49
#9707
21M
21.00 mi13:27:542:37:037:298:15
8:15
#9629
35K
21.75 mi13:33:352:42:447:295:41
7:36
#9594
23M
23.00 mi13:43:162:52:257:309:41
7:44
#9470
24M
24.00 mi13:50:502:59:597:307:34
7:34
#9367
40K
24.85 mi13:57:253:06:347:306:35
7:42
#9300
25.2M
25.20 mi14:00:183:09:277:312:53
8:22
#9251
Finish
26.22 mi14:07:333:16:427:307:15
7:07
#9089
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi117992680268010755(Top 38%)2242(Top 18%)2242(Top 41%)
10K6.21 mi3.10 mi11244+5552420+2602420+26010752(Top 38%)2183(Top 18%)2183(Top 40%)
15K9.32 mi3.11 mi11024+2202330+902330+9010755(Top 38%)2242(Top 18%)2242(Top 41%)
20K12.43 mi3.11 mi10634+3902164+1662164+1669561(Top 34%)1763(Top 14%)1763(Top 32%)
Half13.11 mi0.68 mi10609+252151+132151+1310302(Top 36%)2082(Top 17%)2082(Top 38%)
25K15.53 mi2.42 mi10262+3472032+1192032+1198747(Top 31%)1531(Top 13%)1531(Top 28%)
30K18.64 mi3.11 mi9812+4501873+1591873+1598360(Top 29%)1538(Top 13%)1538(Top 28%)
20M20.00 mi1.36 mi9707+1051859+141859+149128(Top 32%)2033(Top 17%)2033(Top 37%)
21M21.00 mi1.00 mi9629+781850+91850+98914(Top 31%)2119(Top 17%)2119(Top 39%)
35K21.75 mi0.75 mi9594+351854-41854-49341(Top 33%)2282(Top 19%)2282(Top 42%)
23M23.00 mi1.25 mi9470+1241839+151839+158127(Top 29%)1873(Top 15%)1873(Top 34%)
24M24.00 mi1.00 mi9367+1031833+61833+68191(Top 29%)1945(Top 16%)1945(Top 36%)
40K24.85 mi0.85 mi9300+671844-111844-118107(Top 29%)2034(Top 17%)2034(Top 37%)
25.2M25.20 mi0.35 mi9251+491841+31841+38014(Top 28%)2072(Top 17%)2072(Top 38%)
Finish26.22 mi1.02 mi9089+1621807+341807+346510(Top 23%)1453(Top 12%)1453(Top 27%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10755

Females

2242

F18-39

2242

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10752

Females

2183

F18-39

2183

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10755

Females

2242

F18-39

2242

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

9561

Females

1763

F18-39

1763

20K→Half

12.4 - 13.1 mi

Top 36%
×2story building
+19ft-37ft

Overall

10302

Females

2082

F18-39

2082

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8747

Females

1531

F18-39

1531

25K→30K

15.5 - 18.6 mi

Top 29%
×9story building
+181ft-148ft

Overall

8360

Females

1538

F18-39

1538

30K→20M

18.6 - 20.0 mi

Top 32%
×5story building
+64ft-50ft

Overall

9128

Females

2033

F18-39

2033

20M→21M

20.0 - 21.0 mi

Top 31%
×8story building
+106ft-24ft

Overall

8914

Females

2119

F18-39

2119

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

9341

Females

2282

F18-39

2282

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

8127

Females

1873

F18-39

1873

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

8191

Females

1945

F18-39

1945

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

8107

Females

2034

F18-39

2034

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

8014

Females

2072

F18-39

2072

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2story building
+22ft-21ft

Overall

6510

Females

1453

F18-39

1453

Passing Analysis

Category:
Athletes Passed
3249*
Passed By
538
Net Change
+2710
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11799
5K → 10K62469+555#11799#11244
10K → 15K30080+220#11244#11024
15K → 20K41121+390#11024#10634
20K → Half4924+25#10634#10609
Half → 25K36417+347#10609#10262
25K → 30K488*38+450#10262#9812
30K → 20M16256+105#9812#9707
20M → 21M12143+78#9707#9629
21M → 35K7944+35#9629#9594
35K → 23M16844+124#9594#9470
23M → 24M13431+103#9470#9367
24M → 40K11144+67#9367#9300
40K → 25.2M6314+49#9300#9251
25.2M → Finish17513+162#9251#9089
TOTALS3249*538+2710

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

📊

Passing Visuals

Category:
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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