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BOSTON MARATHON 2025

Alexandra Merrigan

Bib: 27102•F

NY

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:24
Rank: #17942
Start → 5K
25:24 | 8:11/mi
10K· 6.21 mi
50:59
Rank: #18018 (-76)
5K → 10K
25:35 | 8:14/mi
15K· 9.32 mi
1:16:38
Rank: #17906 (+112)
10K → 15K
25:39 | 8:15/mi
20K· 12.43 mi
1:42:36
Rank: #17729 (+177)
15K → 20K
25:58 | 8:21/mi
Half· 13.11 mi
1:48:08
Rank: #17656 (+73)
20K → Half
5:32 | 8:07/mi
25K· 15.53 mi
2:08:06
Rank: #17255 (+401)
Half → 25K
19:58 | 8:14/mi
30K· 18.64 mi
2:34:02
Rank: #16611 (+644)
25K → 30K
25:56 | 8:21/mi
20M
2:45:30
Rank: #16341 (+270)
30K → 20M
11:28 | 8:26/mi
21M
2:54:07
Rank: #16021 (+320)
20M → 21M
8:37 | 8:37/mi
35K· 21.75 mi
3:00:11
Rank: #15865 (+156)
21M → 35K
6:04 | 8:07/mi
23M
3:10:14
Rank: #15523 (+342)
35K → 23M
10:03 | 8:02/mi
24M
3:18:21
Rank: #15348 (+175)
23M → 24M
8:07 | 8:07/mi
40K· 24.85 mi
3:25:35
Rank: #15252 (+96)
24M → 40K
7:14 | 8:28/mi
25.2M
3:28:44
Rank: #15208 (+44)
40K → 25.2M
3:09 | 9:08/mi
Finish· 26.22 mi
3:37:00
Rank: #15117 (+91)
25.2M → Finish
8:16 | 8:07/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:48:08
Pace8:15 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:48:52
Pace8:18 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:2025:248:1125:24
8:11
-
10K
6.21 mi12:09:5550:598:1225:35
8:14
+0:03
15K
9.32 mi12:35:341:16:388:1325:39
8:15
+0:01
20K
12.43 mi13:01:321:42:368:1525:58
8:21
+0:06
Half
13.11 mi13:07:041:48:088:155:32
8:07
-0:14
25K
15.53 mi13:27:022:08:068:1519:58
8:14
+0:07
30K
18.64 mi13:52:582:34:028:1625:56
8:21
+0:07
20M
20.00 mi14:04:262:45:308:1611:28
8:26
+0:05
21M
21.00 mi14:13:032:54:078:178:37
8:37
+0:11
35K
21.75 mi14:19:073:00:118:176:04
8:07
-0:30
23M
23.00 mi14:29:103:10:148:1610:03
8:02
-0:05
24M
24.00 mi14:37:173:18:218:168:07
8:07
+0:05
40K
24.85 mi14:44:313:25:358:167:14
8:28
+0:21
25.2M
25.20 mi14:47:403:28:448:173:09
9:08
+0:40
Finish
26.22 mi14:55:563:37:008:178:16
8:07
-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

8:02 /mi

Average Pace

8:17 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:33:51

99% of race

Time at Steady Pace

3:09

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:17 /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 mi11:44:2025:248:1125:24
8:11
#17942
10K
6.21 mi12:09:5550:598:1225:35
8:14
#18018
15K
9.32 mi12:35:341:16:388:1325:39
8:15
#17906
20K
12.43 mi13:01:321:42:368:1525:58
8:21
#17729
Half
13.11 mi13:07:041:48:088:155:32
8:07
#17656
25K
15.53 mi13:27:022:08:068:1519:58
8:14
#17255
30K
18.64 mi13:52:582:34:028:1625:56
8:21
#16611
20M
20.00 mi14:04:262:45:308:1611:28
8:26
#16341
21M
21.00 mi14:13:032:54:078:178:37
8:37
#16021
35K
21.75 mi14:19:073:00:118:176:04
8:07
#15865
23M
23.00 mi14:29:103:10:148:1610:03
8:02
#15523
24M
24.00 mi14:37:173:18:218:168:07
8:07
#15348
40K
24.85 mi14:44:313:25:358:167:14
8:28
#15252
25.2M
25.20 mi14:47:403:28:448:173:09
9:08
#15208
Finish
26.22 mi14:55:563:37:008:178:16
8:07
#15117
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi179426304630417772(Top 63%)6182(Top 51%)6182(Top 113%)
10K6.21 mi3.10 mi18018-766338-346338-3418132(Top 64%)6378(Top 52%)6378(Top 117%)
15K9.32 mi3.11 mi17906+1126268+706268+7017772(Top 63%)6182(Top 51%)6182(Top 113%)
20K12.43 mi3.11 mi17729+1776176+926176+9217282(Top 61%)5927(Top 48%)5927(Top 108%)
Half13.11 mi0.68 mi17656+736127+496127+4916697(Top 59%)5572(Top 46%)5572(Top 102%)
25K15.53 mi2.42 mi17255+4015915+2125915+21215538(Top 55%)5046(Top 41%)5046(Top 92%)
30K18.64 mi3.11 mi16611+6445585+3305585+33013813(Top 49%)4267(Top 35%)4267(Top 78%)
20M20.00 mi1.36 mi16341+2705458+1275458+12713426(Top 47%)4212(Top 34%)4212(Top 77%)
21M21.00 mi1.00 mi16021+3205312+1465312+14611244(Top 40%)3224(Top 26%)3224(Top 59%)
35K21.75 mi0.75 mi15865+1565245+675245+6713053(Top 46%)4201(Top 34%)4201(Top 77%)
23M23.00 mi1.25 mi15523+3425084+1615084+16110267(Top 36%)2885(Top 24%)2885(Top 53%)
24M24.00 mi1.00 mi15348+1755009+755009+7512069(Top 42%)3848(Top 31%)3848(Top 70%)
40K24.85 mi0.85 mi15252+964988+214988+2113221(Top 47%)4566(Top 37%)4566(Top 83%)
25.2M25.20 mi0.35 mi15208+444975+134975+1312645(Top 45%)4324(Top 35%)4324(Top 79%)
Finish26.22 mi1.02 mi15117+914943+324943+3213707(Top 48%)4805(Top 39%)4805(Top 88%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21stories
+97ft-345ft

Overall

17772

Females

6182

F18-39

6182

5K→10K

3.1 - 6.2 mi

Top 64%
×5stories
+79ft-138ft

Overall

18132

Females

6378

F18-39

6378

10K→15K

6.2 - 9.3 mi

Top 63%
×3stories
+67ft-78ft

Overall

17772

Females

6182

F18-39

6182

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

17282

Females

5927

F18-39

5927

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

16697

Females

5572

F18-39

5572

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

15538

Females

5046

F18-39

5046

25K→30K

15.5 - 18.6 mi

Top 49%
×9stories
+181ft-148ft

Overall

13813

Females

4267

F18-39

4267

30K→20M

18.6 - 20.0 mi

Top 47%
×5stories
+64ft-50ft

Overall

13426

Females

4212

F18-39

4212

20M→21M

20.0 - 21.0 mi

Top 40%
×8stories
+106ft-24ft

Overall

11244

Females

3224

F18-39

3224

21M→35K

21.0 - 21.8 mi

Top 46%
×7stories
+17ft-86ft

Overall

13053

Females

4201

F18-39

4201

35K→23M

21.8 - 23.0 mi

Top 36%
×5stories
+23ft-63ft

Overall

10267

Females

2885

F18-39

2885

23M→24M

23.0 - 24.0 mi

Top 42%
×6stories
+12ft-82ft

Overall

12069

Females

3848

F18-39

3848

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

13221

Females

4566

F18-39

4566

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12645

Females

4324

F18-39

4324

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

13707

Females

4805

F18-39

4805

Passing Analysis

Category:
Athletes Passed
3508
Passed By
683
Net Change
+2825
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17942
5K → 10K254330-76#17942#18018
10K → 15K248136+112#18018#17906
15K → 20K278101+177#17906#17729
20K → Half8310+73#17729#17656
Half → 25K41211+401#17656#17255
25K → 30K65410+644#17255#16611
30K → 20M2799+270#16611#16341
20M → 21M3222+320#16341#16021
21M → 35K1637+156#16021#15865
35K → 23M3431+342#15865#15523
23M → 24M1816+175#15523#15348
24M → 40K11923+96#15348#15252
40K → 25.2M5511+44#15252#15208
25.2M → Finish11726+91#15208#15117
TOTALS3508683+2825
📊

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