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BOSTON MARATHON 2025

Rebecca Markham

Bib: 8160•F

IL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 13%
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
20:09
Rank: #3755
Start → 5K
20:09 | 6:29/mi
10K· 6.21 mi
40:21
Rank: #3739 (+16)
5K → 10K
20:12 | 6:30/mi
15K· 9.32 mi
1:00:28
Rank: #3608 (+131)
10K → 15K
20:07 | 6:28/mi
20K· 12.43 mi
1:20:39
Rank: #3428 (+180)
15K → 20K
20:11 | 6:30/mi
Half· 13.11 mi
1:25:05
Rank: #3439 (-11)
20K → Half
4:26 | 6:30/mi
25K· 15.53 mi
1:41:03
Rank: #3419 (+20)
Half → 25K
15:58 | 6:35/mi
30K· 18.64 mi
2:02:21
Rank: #3411 (+8)
25K → 30K
21:18 | 6:51/mi
20M
2:11:54
Rank: #3445 (-34)
30K → 20M
9:33 | 7:02/mi
21M
2:19:18
Rank: #3455 (-10)
20M → 21M
7:24 | 7:24/mi
35K· 21.75 mi
2:24:24
Rank: #3452 (+3)
21M → 35K
5:06 | 6:49/mi
23M
2:33:23
Rank: #3475 (-23)
35K → 23M
8:59 | 7:10/mi
24M
2:40:24
Rank: #3489 (-14)
23M → 24M
7:01 | 7:01/mi
40K· 24.85 mi
2:46:35
Rank: #3534 (-45)
24M → 40K
6:11 | 7:14/mi
25.2M
2:49:15
Rank: #3525 (+9)
40K → 25.2M
2:40 | 7:44/mi
Finish· 26.22 mi
2:56:20
Rank: #3580 (-55)
25.2M → Finish
7:05 | 6:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:05
Pace6:29 /mi
2nd Half
Distance13.11 mi
Time1:31:15
Pace6:58 /mi
📊Positive Split: 7.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:1820:096:2920:09
6:29
-
10K
6.21 mi10:48:3040:216:3020:12
6:30
+0:01
15K
9.32 mi11:08:371:00:286:2920:07
6:28
-0:02
20K
12.43 mi11:28:481:20:396:2920:11
6:30
+0:02
Half
13.11 mi11:33:141:25:056:294:26
6:30
0:00
25K
15.53 mi11:49:121:41:036:3015:58
6:35
+0:05
30K
18.64 mi12:10:302:02:216:3421:18
6:51
+0:16
20M
20.00 mi12:20:032:11:546:369:33
7:02
+0:11
21M
21.00 mi12:27:272:19:186:387:24
7:24
+0:22
35K
21.75 mi12:32:332:24:246:385:06
6:49
-0:35
23M
23.00 mi12:41:322:33:236:408:59
7:10
+0:21
24M
24.00 mi12:48:332:40:246:417:01
7:01
-0:09
40K
24.85 mi12:54:442:46:356:426:11
7:14
+0:13
25.2M
25.20 mi12:57:242:49:156:432:40
7:44
+0:30
Finish
26.22 mi13:04:292:56:206:447:05
6:57
-0:47

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

6:28 /mi

Average Pace

6:44 /mi

Slowest Pace

7:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:06

86% of race

Time at Steady Pace

22:34

13% of race

Time at Slower Pace

2:40

2% of race

Average Pace: 6:44 /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 mi10:28:1820:096:2920:09
6:29
#3755
10K
6.21 mi10:48:3040:216:3020:12
6:30
#3739
15K
9.32 mi11:08:371:00:286:2920:07
6:28
#3608
20K
12.43 mi11:28:481:20:396:2920:11
6:30
#3428
Half
13.11 mi11:33:141:25:056:294:26
6:30
#3439
25K
15.53 mi11:49:121:41:036:3015:58
6:35
#3419
30K
18.64 mi12:10:302:02:216:3421:18
6:51
#3411
20M
20.00 mi12:20:032:11:546:369:33
7:02
#3445
21M
21.00 mi12:27:272:19:186:387:24
7:24
#3455
35K
21.75 mi12:32:332:24:246:385:06
6:49
#3452
23M
23.00 mi12:41:322:33:236:408:59
7:10
#3475
24M
24.00 mi12:48:332:40:246:417:01
7:01
#3489
40K
24.85 mi12:54:442:46:356:426:11
7:14
#3534
25.2M
25.20 mi12:57:242:49:156:432:40
7:44
#3525
Finish
26.22 mi13:04:292:56:206:447:05
6:57
#3580
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi37551931933428(Top 12%)173(Top 1%)173(Top 3%)
10K6.21 mi3.10 mi3739+16190+3190+33757(Top 13%)206(Top 2%)206(Top 4%)
15K9.32 mi3.11 mi3608+131184+6184+63428(Top 12%)173(Top 1%)173(Top 3%)
20K12.43 mi3.11 mi3428+180171+13171+133124(Top 11%)152(Top 1%)152(Top 3%)
Half13.11 mi0.68 mi3439-11172-1172-13734(Top 13%)201(Top 2%)201(Top 4%)
25K15.53 mi2.42 mi3419+20165+7165+73388(Top 12%)183(Top 1%)183(Top 3%)
30K18.64 mi3.11 mi3411+8177-12177-123799(Top 13%)277(Top 2%)277(Top 5%)
20M20.00 mi1.36 mi3445-34179-2179-24304(Top 15%)365(Top 3%)365(Top 7%)
21M21.00 mi1.00 mi3455-10183-4183-44138(Top 15%)397(Top 3%)397(Top 7%)
35K21.75 mi0.75 mi3452+3186-3186-34255(Top 15%)436(Top 4%)436(Top 8%)
23M23.00 mi1.25 mi3475-23195-9195-94744(Top 17%)593(Top 5%)593(Top 11%)
24M24.00 mi1.00 mi3489-14206-11206-114747(Top 17%)647(Top 5%)647(Top 12%)
40K24.85 mi0.85 mi3534-45218-12218-125248(Top 18%)847(Top 7%)847(Top 15%)
25.2M25.20 mi0.35 mi3525+9223-5223-54571(Top 16%)718(Top 6%)718(Top 13%)
Finish26.22 mi1.02 mi3580-55233-10233-105423(Top 19%)1015(Top 8%)1015(Top 19%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3428

Females

173

F18-39

173

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3757

Females

206

F18-39

206

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3428

Females

173

F18-39

173

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

3124

Females

152

F18-39

152

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3734

Females

201

F18-39

201

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3388

Females

183

F18-39

183

25K→30K

15.5 - 18.6 mi

Top 13%
×9stories
+181ft-148ft

Overall

3799

Females

277

F18-39

277

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4304

Females

365

F18-39

365

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4138

Females

397

F18-39

397

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4255

Females

436

F18-39

436

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4744

Females

593

F18-39

593

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4747

Females

647

F18-39

647

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

5248

Females

847

F18-39

847

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4571

Females

718

F18-39

718

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5423

Females

1015

F18-39

1015

Passing Analysis

Category:
Athletes Passed
1055
Passed By
880
Net Change
+175
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3755
5K → 10K141125+16#3755#3739
10K → 15K17443+131#3739#3608
15K → 20K20323+180#3608#3428
20K → Half1021-11#3428#3439
Half → 25K7959+20#3439#3419
25K → 30K115107+8#3419#3411
30K → 20M5286-34#3411#3445
20M → 21M5363-10#3445#3455
21M → 35K3633+3#3455#3452
35K → 23M5477-23#3452#3475
23M → 24M4660-14#3475#3489
24M → 40K3378-45#3489#3534
40K → 25.2M2718+9#3534#3525
25.2M → Finish3287-55#3525#3580
TOTALS1055880+175
📊

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