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BOSTON MARATHON 2025

Laura Giesen

Bib: 10071•F

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
21:27
Rank: #7118
Start → 5K
21:27 | 6:54/mi
10K· 6.21 mi
43:00
Rank: #7302 (-184)
5K → 10K
21:33 | 6:56/mi
15K· 9.32 mi
1:04:38
Rank: #7339 (-37)
10K → 15K
21:38 | 6:58/mi
20K· 12.43 mi
1:26:29
Rank: #7234 (+105)
15K → 20K
21:51 | 7:02/mi
Half· 13.11 mi
1:31:12
Rank: #7220 (+14)
20K → Half
4:43 | 6:55/mi
25K· 15.53 mi
1:48:07
Rank: #6999 (+221)
Half → 25K
16:55 | 6:59/mi
30K· 18.64 mi
2:10:12
Rank: #6564 (+435)
25K → 30K
22:05 | 7:06/mi
20M
2:19:44
Rank: #6307 (+257)
30K → 20M
9:32 | 7:01/mi
21M
2:26:55
Rank: #6062 (+245)
20M → 21M
7:11 | 7:11/mi
35K· 21.75 mi
2:31:54
Rank: #5929 (+133)
21M → 35K
4:59 | 6:40/mi
23M
2:40:32
Rank: #5681 (+248)
35K → 23M
8:38 | 6:54/mi
24M
2:47:03
Rank: #5462 (+219)
23M → 24M
6:31 | 6:31/mi
40K· 24.85 mi
2:52:33
Rank: #5247 (+215)
24M → 40K
5:30 | 6:26/mi
25.2M
2:55:01
Rank: #5181 (+66)
40K → 25.2M
2:28 | 7:09/mi
Finish· 26.22 mi
3:01:34
Rank: #5028 (+153)
25.2M → Finish
6:33 | 6:26/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:31:12
Pace6:57 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:30:22
Pace6:54 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:1521:276:5421:27
6:54
-
10K
6.21 mi11:08:4843:006:5521:33
6:56
+0:02
15K
9.32 mi11:30:261:04:386:5621:38
6:58
+0:02
20K
12.43 mi11:52:171:26:296:5821:51
7:02
+0:04
Half
13.11 mi11:57:001:31:126:574:43
6:55
-0:07
25K
15.53 mi12:13:551:48:076:5816:55
6:59
+0:04
30K
18.64 mi12:36:002:10:126:5922:05
7:06
+0:07
20M
20.00 mi12:45:322:19:446:599:32
7:01
-0:05
21M
21.00 mi12:52:432:26:557:007:11
7:11
+0:10
35K
21.75 mi12:57:422:31:546:594:59
6:40
-0:31
23M
23.00 mi13:06:202:40:326:598:38
6:54
+0:14
24M
24.00 mi13:12:512:47:036:586:31
6:31
-0:23
40K
24.85 mi13:18:212:52:336:575:30
6:26
-0:05
25.2M
25.20 mi13:20:492:55:016:572:28
7:09
+0:43
Finish
26.22 mi13:27:223:01:346:566:33
6:26
-0:43

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

6:26 /mi

Average Pace

6:56 /mi

Slowest Pace

7:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:29:50

83% of race

Time at Steady Pace

31:44

17% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:55 /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 mi10:47:1521:276:5421:27
6:54
#7118
10K
6.21 mi11:08:4843:006:5521:33
6:56
#7302
15K
9.32 mi11:30:261:04:386:5621:38
6:58
#7339
20K
12.43 mi11:52:171:26:296:5821:51
7:02
#7234
Half
13.11 mi11:57:001:31:126:574:43
6:55
#7220
25K
15.53 mi12:13:551:48:076:5816:55
6:59
#6999
30K
18.64 mi12:36:002:10:126:5922:05
7:06
#6564
20M
20.00 mi12:45:322:19:446:599:32
7:01
#6307
21M
21.00 mi12:52:432:26:557:007:11
7:11
#6062
35K
21.75 mi12:57:422:31:546:594:59
6:40
#5929
23M
23.00 mi13:06:202:40:326:598:38
6:54
#5681
24M
24.00 mi13:12:512:47:036:586:31
6:31
#5462
40K
24.85 mi13:18:212:52:336:575:30
6:26
#5247
25.2M
25.20 mi13:20:492:55:016:572:28
7:09
#5181
Finish
26.22 mi13:27:223:01:346:566:33
6:26
#5028
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi71187087087395(Top 26%)832(Top 7%)832(Top 15%)
10K6.21 mi3.10 mi7302-184770-62770-627524(Top 26%)844(Top 7%)844(Top 15%)
15K9.32 mi3.11 mi7339-37788-18788-187395(Top 26%)832(Top 7%)832(Top 15%)
20K12.43 mi3.11 mi7234+105774+14774+147089(Top 25%)797(Top 7%)797(Top 15%)
Half13.11 mi0.68 mi7220+14773+1773+17040(Top 25%)765(Top 6%)765(Top 14%)
25K15.53 mi2.42 mi6999+221728+45728+456189(Top 22%)638(Top 5%)638(Top 12%)
30K18.64 mi3.11 mi6564+435662+66662+665371(Top 19%)524(Top 4%)524(Top 10%)
20M20.00 mi1.36 mi6307+257626+36626+364223(Top 15%)356(Top 3%)356(Top 7%)
21M21.00 mi1.00 mi6062+245595+31595+313093(Top 11%)230(Top 2%)230(Top 4%)
35K21.75 mi0.75 mi5929+133572+23572+233341(Top 12%)288(Top 2%)288(Top 5%)
23M23.00 mi1.25 mi5681+248535+37535+373212(Top 11%)277(Top 2%)277(Top 5%)
24M24.00 mi1.00 mi5462+219497+38497+382147(Top 8%)150(Top 1%)150(Top 3%)
40K24.85 mi0.85 mi5247+215468+29468+291409(Top 5%)98(Top 0.8%)98(Top 2%)
25.2M25.20 mi0.35 mi5181+66459+9459+92044(Top 7%)194(Top 2%)194(Top 4%)
Finish26.22 mi1.02 mi5028+153444+15444+152481(Top 9%)214(Top 2%)214(Top 4%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

7395

Females

832

F18-39

832

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

7524

Females

844

F18-39

844

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

7395

Females

832

F18-39

832

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

7089

Females

797

F18-39

797

20K→Half

12.4 - 13.1 mi

Top 25%
×2stories
+19ft-37ft

Overall

7040

Females

765

F18-39

765

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

6189

Females

638

F18-39

638

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5371

Females

524

F18-39

524

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4223

Females

356

F18-39

356

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

3093

Females

230

F18-39

230

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3341

Females

288

F18-39

288

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

3212

Females

277

F18-39

277

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2147

Females

150

F18-39

150

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1409

Females

98

F18-39

98

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

2044

Females

194

F18-39

194

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2481

Females

214

F18-39

214

Passing Analysis

Category:
Athletes Passed
2693
Passed By
603
Net Change
+2090
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7118
5K → 10K130314-184#7118#7302
10K → 15K125162-37#7302#7339
15K → 20K18176+105#7339#7234
20K → Half206+14#7234#7220
Half → 25K24019+221#7220#6999
25K → 30K45823+435#6999#6564
30K → 20M2581+257#6564#6307
20M → 21M2450+245#6307#6062
21M → 35K1341+133#6062#5929
35K → 23M2480+248#5929#5681
23M → 24M2190+219#5681#5462
24M → 40K2150+215#5462#5247
40K → 25.2M660+66#5247#5181
25.2M → Finish1541+153#5181#5028
TOTALS2693603+2090
📊

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