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BOSTON MARATHON 2025

Denise Grohn

Bib: 6057•F

CT

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 12%
Gender (Female)
#0 / 12228
Top 2%
Division (F18-39)
#0 / 5469
Top 4%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:06
Rank: #6258
Start → 5K
21:06 | 6:47/mi
10K· 6.21 mi
41:58
Rank: #5875 (+383)
5K → 10K
20:52 | 6:43/mi
15K· 9.32 mi
1:02:39
Rank: #5478 (+397)
10K → 15K
20:41 | 6:39/mi
20K· 12.43 mi
1:23:18
Rank: #5030 (+448)
15K → 20K
20:39 | 6:39/mi
Half· 13.11 mi
1:27:40
Rank: #4897 (+133)
20K → Half
4:22 | 6:24/mi
25K· 15.53 mi
1:43:33
Rank: #4517 (+380)
Half → 25K
15:53 | 6:33/mi
30K· 18.64 mi
2:04:13
Rank: #4030 (+487)
25K → 30K
20:40 | 6:39/mi
20M
2:13:23
Rank: #3907 (+123)
30K → 20M
9:10 | 6:45/mi
21M
2:20:23
Rank: #3754 (+153)
20M → 21M
7:00 | 7:00/mi
35K· 21.75 mi
2:25:21
Rank: #3725 (+29)
21M → 35K
4:58 | 6:38/mi
23M
2:34:03
Rank: #3669 (+56)
35K → 23M
8:42 | 6:57/mi
24M
2:40:56
Rank: #3646 (+23)
23M → 24M
6:53 | 6:53/mi
40K· 24.85 mi
2:46:47
Rank: #3588 (+58)
24M → 40K
5:51 | 6:51/mi
25.2M
2:49:24
Rank: #3577 (+11)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
2:55:54
Rank: #3462 (+115)
25.2M → Finish
6:30 | 6:23/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:27:40
Pace6:41 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:28:14
Pace6:44 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:1521:066:4721:06
6:47
-
10K
6.21 mi10:47:0741:586:4520:52
6:43
-0:04
15K
9.32 mi11:07:481:02:396:4320:41
6:39
-0:04
20K
12.43 mi11:28:271:23:186:4220:39
6:39
0:00
Half
13.11 mi11:32:491:27:406:414:22
6:24
-0:15
25K
15.53 mi11:48:421:43:336:4015:53
6:33
+0:09
30K
18.64 mi12:09:222:04:136:4020:40
6:39
+0:06
20M
20.00 mi12:18:322:13:236:409:10
6:45
+0:06
21M
21.00 mi12:25:322:20:236:417:00
7:00
+0:15
35K
21.75 mi12:30:302:25:216:414:58
6:38
-0:22
23M
23.00 mi12:39:122:34:036:428:42
6:57
+0:19
24M
24.00 mi12:46:052:40:566:426:53
6:53
-0:04
40K
24.85 mi12:51:562:46:476:435:51
6:51
-0:02
25.2M
25.20 mi12:54:332:49:246:432:37
7:35
+0:44
Finish
26.22 mi13:01:032:55:546:436:30
6:23
-1:12

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

6:23 /mi

Average Pace

6:43 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:53:17

99% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

2:37

1% of race

Average Pace: 6:43 /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 mi10:26:1521:066:4721:06
6:47
#6258
10K
6.21 mi10:47:0741:586:4520:52
6:43
#5875
15K
9.32 mi11:07:481:02:396:4320:41
6:39
#5478
20K
12.43 mi11:28:271:23:186:4220:39
6:39
#5030
Half
13.11 mi11:32:491:27:406:414:22
6:24
#4897
25K
15.53 mi11:48:421:43:336:4015:53
6:33
#4517
30K
18.64 mi12:09:222:04:136:4020:40
6:39
#4030
20M
20.00 mi12:18:322:13:236:409:10
6:45
#3907
21M
21.00 mi12:25:322:20:236:417:00
7:00
#3754
35K
21.75 mi12:30:302:25:216:414:58
6:38
#3725
23M
23.00 mi12:39:122:34:036:428:42
6:57
#3669
24M
24.00 mi12:46:052:40:566:426:53
6:53
#3646
40K
24.85 mi12:51:562:46:476:435:51
6:51
#3588
25.2M
25.20 mi12:54:332:49:246:432:37
7:35
#3577
Finish
26.22 mi13:01:032:55:546:436:30
6:23
#3462
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi62585185184728(Top 17%)300(Top 2%)300(Top 5%)
10K6.21 mi3.10 mi5875+383457+61457+615501(Top 19%)416(Top 3%)416(Top 8%)
15K9.32 mi3.11 mi5478+397402+55402+554728(Top 17%)300(Top 2%)300(Top 5%)
20K12.43 mi3.11 mi5030+448338+64338+644001(Top 14%)231(Top 2%)231(Top 4%)
Half13.11 mi0.68 mi4897+133324+14324+143124(Top 11%)148(Top 1%)148(Top 3%)
25K15.53 mi2.42 mi4517+380282+42282+423181(Top 11%)161(Top 1%)161(Top 3%)
30K18.64 mi3.11 mi4030+487238+44238+442656(Top 9%)136(Top 1%)136(Top 2%)
20M20.00 mi1.36 mi3907+123228+10228+102690(Top 9%)160(Top 1%)160(Top 3%)
21M21.00 mi1.00 mi3754+153216+12216+122283(Top 8%)142(Top 1%)142(Top 3%)
35K21.75 mi0.75 mi3725+29215+1215+13207(Top 11%)256(Top 2%)256(Top 5%)
23M23.00 mi1.25 mi3669+56217-2217-23491(Top 12%)310(Top 3%)310(Top 6%)
24M24.00 mi1.00 mi3646+23225-8225-84015(Top 14%)451(Top 4%)451(Top 8%)
40K24.85 mi0.85 mi3588+58226-1226-13091(Top 11%)298(Top 2%)298(Top 5%)
25.2M25.20 mi0.35 mi3577+11228-2228-23878(Top 14%)512(Top 4%)512(Top 9%)
Finish26.22 mi1.02 mi3462+115217+11217+112249(Top 8%)183(Top 1%)183(Top 3%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4728

Females

300

F18-39

300

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5501

Females

416

F18-39

416

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4728

Females

300

F18-39

300

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

4001

Females

231

F18-39

231

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

3124

Females

148

F18-39

148

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

3181

Females

161

F18-39

161

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2656

Females

136

F18-39

136

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2690

Females

160

F18-39

160

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2283

Females

142

F18-39

142

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

3207

Females

256

F18-39

256

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3491

Females

310

F18-39

310

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

4015

Females

451

F18-39

451

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3091

Females

298

F18-39

298

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3878

Females

512

F18-39

512

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2249

Females

183

F18-39

183

Passing Analysis

Category:
Athletes Passed
3008
Passed By
212
Net Change
+2796
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6258
5K → 10K43350+383#6258#5875
10K → 15K4069+397#5875#5478
15K → 20K4546+448#5478#5030
20K → Half1330+133#5030#4897
Half → 25K3822+380#4897#4517
25K → 30K4914+487#4517#4030
30K → 20M1296+123#4030#3907
20M → 21M1596+153#3907#3754
21M → 35K4415+29#3754#3725
35K → 23M8731+56#3725#3669
23M → 24M6037+23#3669#3646
24M → 40K7719+58#3646#3588
40K → 25.2M3322+11#3588#3577
25.2M → Finish1205+115#3577#3462
TOTALS3008212+2796
📊

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