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BOSTON MARATHON 2025

Jennefer Erinna Monck

Bib: 16802•F

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 49%
Division (F50-54)
#0 / 1303
Top 46%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:44
Rank: #16310
Start → 5K
24:44 | 7:58/mi
10K· 6.21 mi
50:41
Rank: #17674 (-1364)
5K → 10K
25:57 | 8:21/mi
15K· 9.32 mi
1:17:31
Rank: #18510 (-836)
10K → 15K
26:50 | 8:38/mi
20K· 12.43 mi
1:44:07
Rank: #18508 (+2)
15K → 20K
26:36 | 8:34/mi
Half· 13.11 mi
1:49:42
Rank: #18433 (+75)
20K → Half
5:35 | 8:11/mi
25K· 15.53 mi
2:10:42
Rank: #18361 (+72)
Half → 25K
21:00 | 8:40/mi
30K· 18.64 mi
2:38:10
Rank: #18006 (+355)
25K → 30K
27:28 | 8:50/mi
20M
2:50:41
Rank: #17995 (+11)
30K → 20M
12:31 | 9:13/mi
21M
3:00:23
Rank: #17962 (+33)
20M → 21M
9:42 | 9:42/mi
35K· 21.75 mi
3:07:26
Rank: #18049 (-87)
21M → 35K
7:03 | 9:25/mi
23M
3:20:11
Rank: #18309 (-260)
35K → 23M
12:45 | 10:11/mi
24M
3:30:08
Rank: #18500 (-191)
23M → 24M
9:57 | 9:57/mi
40K· 24.85 mi
3:39:06
Rank: #18714 (-214)
24M → 40K
8:58 | 10:29/mi
25.2M
3:43:00
Rank: #18780 (-66)
40K → 25.2M
3:54 | 11:19/mi
Finish· 26.22 mi
3:52:15
Rank: #18792 (-12)
25.2M → Finish
9:15 | 9:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:42
Pace8:22 /mi
2nd Half
Distance13.11 mi
Time2:02:33
Pace9:21 /mi
📊Positive Split: 11.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:32:4424:447:5824:44
7:58
-
10K
6.21 mi10:58:4150:418:0925:57
8:21
+0:23
15K
9.32 mi11:25:311:17:318:1926:50
8:38
+0:17
20K
12.43 mi11:52:071:44:078:2326:36
8:34
-0:04
Half
13.11 mi11:57:421:49:428:225:35
8:11
-0:23
25K
15.53 mi12:18:422:10:428:2521:00
8:40
+0:29
30K
18.64 mi12:46:102:38:108:2927:28
8:50
+0:10
20M
20.00 mi12:58:412:50:418:3212:31
9:13
+0:23
21M
21.00 mi13:08:233:00:238:359:42
9:42
+0:29
35K
21.75 mi13:15:263:07:268:377:03
9:25
-0:17
23M
23.00 mi13:28:113:20:118:4212:45
10:11
+0:46
24M
24.00 mi13:38:083:30:088:459:57
9:57
-0:14
40K
24.85 mi13:47:063:39:068:498:58
10:29
+0:32
25.2M
25.20 mi13:51:003:43:008:513:54
11:19
+0:50
Finish
26.22 mi14:00:153:52:158:529:15
9:05
-2:14

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

7:58 /mi

Average Pace

8:52 /mi

Slowest Pace

11:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:22:52

36% of race

Time at Steady Pace

1:44:07

45% of race

Time at Slower Pace

45:16

19% of race

Average Pace: 8:51 /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 mi10:32:4424:447:5824:44
7:58
#16310
10K
6.21 mi10:58:4150:418:0925:57
8:21
#17674
15K
9.32 mi11:25:311:17:318:1926:50
8:38
#18510
20K
12.43 mi11:52:071:44:078:2326:36
8:34
#18508
Half
13.11 mi11:57:421:49:428:225:35
8:11
#18433
25K
15.53 mi12:18:422:10:428:2521:00
8:40
#18361
30K
18.64 mi12:46:102:38:108:2927:28
8:50
#18006
20M
20.00 mi12:58:412:50:418:3212:31
9:13
#17995
21M
21.00 mi13:08:233:00:238:359:42
9:42
#17962
35K
21.75 mi13:15:263:07:268:377:03
9:25
#18049
23M
23.00 mi13:28:113:20:118:4212:45
10:11
#18309
24M
24.00 mi13:38:083:30:088:459:57
9:57
#18500
40K
24.85 mi13:47:063:39:068:498:58
10:29
#18714
25.2M
25.20 mi13:51:003:43:008:513:54
11:19
#18780
Finish
26.22 mi14:00:153:52:158:529:15
9:05
#18792
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi163105340534020133(Top 71%)7506(Top 61%)7506(Top 576%)
10K6.21 mi3.10 mi17674-13646137-7976137-79718900(Top 67%)6825(Top 56%)6825(Top 524%)
15K9.32 mi3.11 mi18510-8366632-4956632-49520133(Top 71%)7506(Top 61%)7506(Top 576%)
20K12.43 mi3.11 mi18508+26628+46628+418626(Top 66%)6702(Top 55%)6702(Top 514%)
Half13.11 mi0.68 mi18433+756578+506578+5017252(Top 61%)5917(Top 48%)5917(Top 454%)
25K15.53 mi2.42 mi18361+726559+196559+1918171(Top 64%)6522(Top 53%)6522(Top 501%)
30K18.64 mi3.11 mi18006+3556400+1596400+15916856(Top 59%)5959(Top 49%)5959(Top 457%)
20M20.00 mi1.36 mi17995+116420-206420-2017845(Top 63%)6619(Top 54%)6619(Top 508%)
21M21.00 mi1.00 mi17962+336409+116409+1117065(Top 60%)6299(Top 52%)6299(Top 483%)
35K21.75 mi0.75 mi18049-876476-676476-6720057(Top 71%)8007(Top 65%)8007(Top 615%)
23M23.00 mi1.25 mi18309-2606658-1826658-18221061(Top 74%)8587(Top 70%)8587(Top 659%)
24M24.00 mi1.00 mi18500-1916793-1356793-13521219(Top 75%)8712(Top 71%)8712(Top 669%)
40K24.85 mi0.85 mi18714-2146944-1516944-15121897(Top 77%)9142(Top 75%)9142(Top 702%)
25.2M25.20 mi0.35 mi18780-666989-456989-4521560(Top 76%)8929(Top 73%)8929(Top 685%)
Finish26.22 mi1.02 mi18792-127014-257014-2519429(Top 68%)7829(Top 64%)7829(Top 601%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21stories
+97ft-345ft

Overall

20133

Females

7506

F50-54

7506

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

18900

Females

6825

F50-54

6825

10K→15K

6.2 - 9.3 mi

Top 71%
×3stories
+67ft-78ft

Overall

20133

Females

7506

F50-54

7506

15K→20K

9.3 - 12.4 mi

Top 66%
×5stories
+106ft-86ft

Overall

18626

Females

6702

F50-54

6702

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

17252

Females

5917

F50-54

5917

Half→25K

13.1 - 15.5 mi

Top 64%
×4stories
+66ft-88ft

Overall

18171

Females

6522

F50-54

6522

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

16856

Females

5959

F50-54

5959

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

17845

Females

6619

F50-54

6619

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

17065

Females

6299

F50-54

6299

21M→35K

21.0 - 21.8 mi

Top 71%
×7stories
+17ft-86ft

Overall

20057

Females

8007

F50-54

8007

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

21061

Females

8587

F50-54

8587

23M→24M

23.0 - 24.0 mi

Top 75%
×6stories
+12ft-82ft

Overall

21219

Females

8712

F50-54

8712

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

21897

Females

9142

F50-54

9142

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21560

Females

8929

F50-54

8929

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

19429

Females

7829

F50-54

7829

Passing Analysis

Category:
Athletes Passed
1450
Passed By
3932
Net Change
-2482
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16310
5K → 10K341398-1364#16310#17674
10K → 15K39875-836#17674#18510
15K → 20K197195+2#18510#18508
20K → Half849+75#18508#18433
Half → 25K203131+72#18433#18361
25K → 30K42974+355#18361#18006
30K → 20M129118+11#18006#17995
20M → 21M11077+33#17995#17962
21M → 35K37124-87#17962#18049
35K → 23M48308-260#18049#18309
23M → 24M36227-191#18309#18500
24M → 40K30244-214#18500#18714
40K → 25.2M1480-66#18714#18780
25.2M → Finish6072-12#18780#18792
TOTALS14503932-2482
📊

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